Fix several whitespace errors

* Remove whitespace at the end of lines.
* Replace space indentation by tabs.
* Add whitespace before/after several operators ("+", "-", "*", ...)
* Add whitespace to assignments ("foo = bar;").
* Fix whitespace in parameter lists ("foobar(foo, bar, 42)").

Signed-off-by: Lukas Fleischer <cgit@cryptocrack.de>

ui-refs.c

@@ -200,7 +200,7 @@ void cgit_print_branches(int maxcount)
 		qsort(list.refs, maxcount, sizeof(*list.refs), cmp_ref_name);
 	}
 
-	for(i=0; i<maxcount; i++)
+	for(i = 0; i < maxcount; i++)
 		print_branch(list.refs[i]);
 
 	if (maxcount < list.count)
@@ -224,7 +224,7 @@ void cgit_print_tags(int maxcount)
 	else if (maxcount > list.count)
 		maxcount = list.count;
 	print_tag_header();
-	for(i=0; i<maxcount; i++)
+	for(i = 0; i < maxcount; i++)
 		print_tag(list.refs[i]);
 
 	if (maxcount < list.count)