improve readability of string: fix indentation and remove trailing spaces

Signed-off-by: André Goddard Rosa <andre.goddard@gmail.com>
diff --git a/libc/string/strcoll.c b/libc/string/strcoll.c
index 365cad5..e3b1ec3 100755
--- a/libc/string/strcoll.c
+++ b/libc/string/strcoll.c
@@ -36,5 +36,5 @@
 int
 strcoll(const char *s1, const char *s2)
 {
-	return strcmp (s1, s2);
+	return strcmp(s1, s2);
 }