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-tag.c

@@ -99,6 +99,6 @@ void cgit_print_tag(char *revname)
 		if (ctx.repo->snapshots)
 			print_download_links(revname);
 		html("</table>\n");
-        }
+	}
 	return;
 }