improve readability of string: fix indentation and remove trailing spaces

Signed-off-by: André Goddard Rosa <andre.goddard@gmail.com>

libc/string/strlcat.c

@@ -46,9 +46,9 @@ strlcat(char *dst, const char *src, size_t siz)
 		if (n != 1) {
 			*d++ = *s;
 			n--;
-  }
+		}
 		s++;
-  }
+	}
 	*d = '\0';
 
 	return(dlen + (s - src));	/* count does not include NUL */