get rid of trailing whitespace and extra newlines

Co-authored-by: Dan Church <amphetamachine@gmail.com>

Makefile.am

@@ -49,4 +49,3 @@ man_MANS = rdfind.1
 #for formatting the source
 format:
 	./do_clang_format.sh
-

README.md

@@ -55,7 +55,7 @@ Look for duplicate files in directory /home/pauls/bilder:
     It seems like you have 100 files that are not unique
     Totally, 24 Mib can be reduced.
     Now making results file results.txt
-              
+
 It indicates there are 100 files that are not unique. Let us examine them by looking at the newly created results.txt:
 
     $ cat results.txt
@@ -88,7 +88,7 @@ Rdfind uses the following algorithm. If N is the number of files to search throu
 11. Sort on device and inode(speeds up file reading). Perform a checksum calculation for each file.
 12. Only keep files on the list with the same size and checksum. These are duplicates.
 13. Sort list on size, priority number, and depth. The first file for every set of duplicates is considered to be the original.
-14. If flag ”-makeresultsfile true”, then print results file (default). 
+14. If flag ”-makeresultsfile true”, then print results file (default).
 15. If flag ”-deleteduplicates true”, then delete (unlink) duplicate files. Exit.
 16. If flag ”-makesymlinks true”, then replace duplicates with a symbolic link to the original. Exit.
 17. If flag ”-makehardlinks true”, then replace duplicates with a hard link to the original. Exit.
@@ -130,9 +130,9 @@ The following methods are used to maintain code quality:
  - clang format is used, issue make format to execute it
  - cppcheck has been run manually and relevant issues are fixed
  - [disorderfs](https://packages.debian.org/sid/disorderfs) is used (if available) to verify independence of file system ordering
- 
+
  There is a helper script that does the test build variants, see do_quality_checks.sh in the project root.
- 
+
 ## Alternatives
 
 There are some interesting alternatives.

configure.ac

@@ -6,7 +6,7 @@ dnl See LICENSE for further details.
 VERSION="1.6.next"
 AC_INIT([rdfind],[1.6.next])
 AC_CONFIG_SRCDIR([rdfind.cc])
-AC_CONFIG_HEADERS([config.h])       
+AC_CONFIG_HEADERS([config.h])
 
 AM_INIT_AUTOMAKE
 
@@ -37,19 +37,19 @@ AC_HEADER_ASSERT
 dnl test for nettle
 AC_CHECK_HEADER(nettle/sha.h,,[AC_MSG_ERROR([
  nettle header files missing. Please install nettle
- first. If you have already done so and get this error message 
- anyway, it may be installed somewhere else, maybe because you 
+ first. If you have already done so and get this error message
+ anyway, it may be installed somewhere else, maybe because you
  don't have root access. Pass CPPFLAGS=-I/your/path/to/nettle to configure
  and try again. The path should be so that \#include "nettle/sha.h" works.
  On Debian-ish systems, use "apt-get install nettle-dev" to get a system
  wide nettle install.
-])]) 
+])])
 AC_CHECK_LIB(nettle,nettle_pbkdf2_hmac_sha256,,[AC_MSG_ERROR([
  Could not link to libnettle. Please install nettle
  first. If you have already done so; please run ldconfig
  as root or check whether the path libnettle was installed
- to is in your LD_LIBRARY_PATH. If you have nettle 
- somewhere else, maybe because you don't have root 
+ to is in your LD_LIBRARY_PATH. If you have nettle
+ somewhere else, maybe because you don't have root
  access, pass LDFLAGS=-L/your/path/to/nettle to configure
  and try again.
 ])])
@@ -125,8 +125,8 @@ if test "x$set_more_warnings" != xno; then
                          -Wzero-as-null-pointer-constant \
                          -Wparentheses \
                          -Wdate-time \
-                         -Wextra-semi \ 
-                         -Wbiznafronck" 
+                         -Wextra-semi \
+                         -Wbiznafronck"
 
         #these warnings were tried but deemed unuseful for this project:
         #                -Wunsafe-loop-optimizations \
@@ -170,7 +170,7 @@ AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
             [has_fallthrough=yes],
             [has_fallthrough=no])
 AC_MSG_RESULT($has_fallthrough)
-if test $has_fallthrough = yes; then            
+if test $has_fallthrough = yes; then
 AC_DEFINE(FALLTHROUGH, [str], "support for c++17 fallthrough")
 else
 AC_DEFINE(FALLTHROUGH, [], "support for c++17 fallthrough")
@@ -179,7 +179,7 @@ fi
 dnl valgrind support
 dnl unfortunately it makes checking much slower
 dnl even if valgrind is not used, so leave it inactive.
-dnl AX_VALGRIND_CHECK 
+dnl AX_VALGRIND_CHECK
 dnl
 dnl instead, just use "VALGRIND=valgrind make check" to test with valgrind
 dnl read Makefile.in and write Makefile

rdfind.1

@@ -7,7 +7,7 @@
 .SH NAME
 rdfind \- finds duplicate files
 .SH SYNOPSIS
-.B rdfind [ options ] 
+.B rdfind [ options ]
 .I directory1 | file1
 .B [
 .I directory2 | file2
@@ -16,15 +16,15 @@ rdfind \- finds duplicate files
 .B rdfind
 finds duplicate files across and/or within several directories. It calculates
 checksum only if necessary.
-rdfind runs in O(Nlog(N)) time with N being the number of files. 
+rdfind runs in O(Nlog(N)) time with N being the number of files.
 
 If two (or more) equal files are found, the program decides which of
 them is the original and the rest are considered duplicates. This
 is done by ranking the files to each other and deciding which has the
 highest rank. See section RANKING for details.
 
 By default, no action is taken besides creating a file with the
-detected files and showing the possible amount of saved space. 
+detected files and showing the possible amount of saved space.
 
 If you need better control over the ranking than given, you can use
 some preprocessor which sorts the file names in desired order and then
@@ -39,7 +39,7 @@ Given two or more equal files, the one with the highest rank is
 selected to be the original and the rest are duplicates. The rules of
 ranking are given below, where the rules are executed from start until
 an original has been found. Given two files A and B which have equal
-size and content, the ranking is as follows: 
+size and content, the ranking is as follows:
 
 If A was found while scanning an input argument earlier than B, A
 is higher ranked.
@@ -110,7 +110,7 @@ General options:
 .BR \-sleep " " \fIX\fRms
 Sleeps X milliseconds between reading each file, to reduce
 load. Default is 0 (no sleep). Note that only a few values are
-supported at present: 0,1-5,10,25,50,100 milliseconds. 
+supported at present: 0,1-5,10,25,50,100 milliseconds.
 .TP
 .BR \-n ", " \-dryrun " " \fItrue\fR|\fIfalse\fR
 Displays what should have been done, don't actually delete or link
@@ -146,7 +146,7 @@ DUPTYPE_WITHIN_SAME_TREE files in the same tree (found when processing
 the directory in the same input argument as the original)
 
 DUPTYPE_OUTSIDE_TREE the file is found during processing another input
-argument than the original. 
+argument than the original.
 .SH ENVIRONMENT
 .SH DIAGNOSTICS
 .SH EXIT VALUES

release_new_version.txt

@@ -28,4 +28,3 @@ echo $(sha1sum < $pkg |cut -f1 -d' ')" (SHA1)" >>table.txt
 echo $(sha256sum < $pkg |cut -f1 -d' ')" (SHA256)" >>table.txt
 
 man2html rdfind.1 |tail -n +3 > rdfind.1.html
-