Fix an off-by-one error with --column.

Fixes #105.

src/printer.rs

@@ -186,7 +186,7 @@ impl<W: Terminal + Send> Printer<W> {
             let column =
                 if self.column {
                     Some(re.find(&buf[start..end])
-                           .map(|(s, _)| s + 1).unwrap_or(0) as u64)
+                           .map(|(s, _)| s).unwrap_or(0) as u64)
                 } else {
                     None
                 };

tests/tests.rs

@@ -86,8 +86,8 @@ sherlock!(columns, |wd: WorkDir, mut cmd: Command| {
     cmd.arg("--column");
     let lines: String = wd.stdout(&mut cmd);
     let expected = "\
-58:For the Doctor Watsons of this world, as opposed to the Sherlock
-50:be, to a very large extent, the result of luck. Sherlock Holmes
+57:For the Doctor Watsons of this world, as opposed to the Sherlock
+49:be, to a very large extent, the result of luck. Sherlock Holmes
 ";
     assert_eq!(lines, expected);
 });
@@ -716,6 +716,24 @@ clean!(regression_93, r"(\d{1,3}\.){3}\d{1,3}", ".",
     assert_eq!(lines, "foo:192.168.1.1\n");
 });
 
+// See: https://github.com/BurntSushi/ripgrep/issues/105
+clean!(regression_105_part1, "test", ".", |wd: WorkDir, mut cmd: Command| {
+    wd.create("foo", "zztest");
+    cmd.arg("--vimgrep");
+
+    let lines: String = wd.stdout(&mut cmd);
+    assert_eq!(lines, "foo:1:3:zztest\n");
+});
+
+// See: https://github.com/BurntSushi/ripgrep/issues/105
+clean!(regression_105_part2, "test", ".", |wd: WorkDir, mut cmd: Command| {
+    wd.create("foo", "zztest");
+    cmd.arg("--column");
+
+    let lines: String = wd.stdout(&mut cmd);
+    assert_eq!(lines, "foo:3:zztest\n");
+});
+
 // See: https://github.com/BurntSushi/ripgrep/issues/20
 sherlock!(feature_20, "Sherlock", ".", |wd: WorkDir, mut cmd: Command| {
     cmd.arg("--no-filename");