minor optimization in puts: use inline putc_unlocked macro for newline

diff --git a/src/stdio/puts.c b/src/stdio/puts.c
index 4c0e583cfae7cd32e4d896fa9edb12cf14838629..5a38a49b975adcad3192eda3148ef1acf55ad0df 100644 (file)
--- a/src/stdio/puts.c
+++ b/src/stdio/puts.c
@@ -4,7 +4,7 @@ int puts(const char *s)
 {
        int r;
        FLOCK(stdout);
-       r = -(fputs(s, stdout) < 0 || putchar('\n') < 0);
+       r = -(fputs(s, stdout) < 0 || putc_unlocked('\n', stdout) < 0);
        FUNLOCK(stdout);
        return r;
 }