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/quote.c

@@ -92,7 +92,7 @@ quotestrdup(char *s)
 
 	if(__needsquotes(s, &quotelen) == 0)
 		return strdup(s);
-	
+
 	ret = malloc(quotelen+1);
 	if(ret == nil)
 		return nil;
@@ -118,7 +118,7 @@ quoterunestrdup(Rune *s)
 
 	if(__runeneedsquotes(s, &quotelen) == 0)
 		return runestrdup(s);
-	
+
 	ret = malloc((quotelen+1)*sizeof(Rune));
 	if(ret == nil)
 		return nil;