Trivial changes: whitespace and modes.

Remote whitespace at the ends of lines.
Remove blank lines from the ends of files.
Change modes on source files so that they
are not executable.

Signed-off-by: Dan Cross <cross@gajendra.net>

src/lib9/unsharp.c

@@ -3,7 +3,7 @@
 
 /*
  * I don't want too many of these,
- * but the ones we have are just too useful. 
+ * but the ones we have are just too useful.
  */
 static struct {
 	char *old;