(strchrnul): Convert arg to char, not to unsigned char.

diff --git a/lib/strchrnul.c b/lib/strchrnul.c
index db42e28..be85312 100644 (file)
--- a/lib/strchrnul.c
+++ b/lib/strchrnul.c
@@ -22,7 +22,7 @@
 char *
 strchrnul (const char *s, int c_in)
 {
-  unsigned char c = c_in;
+  char c = c_in;
   while (*s && (*s != c))
     s++;