Do not match exact amount of spaces for errno macro expansion in appr…

…ovalTests.py

E.g. musl libc expands errno() to __errno_location() without a space between, glibc has 1 space.

tools/scripts/approvalTests.py

@@ -44,7 +44,7 @@
 
 # errno macro expands into various names depending on platform, so we need to fix them up as well
 errnoParser = re.compile(r'''
-    \(\*__errno_location\ \(\)\)
+    \(\*__errno_location\s*\(\)\)
     |
     \(\*__error\(\)\)
     |