[newlib-cygwin] newlib: libc: Improved the readability of strcspn with minor optimization

[Jeff Johnston]

https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=b639245932726602394ddf91f60883184191a643

commit b639245932726602394ddf91f60883184191a643
Author: Xiao Zeng <zengxiao@eswincomputing.com>
Date:   Fri Dec 15 16:31:01 2023 +0800

    newlib: libc: Improved the readability of strcspn with minor optimization
    
    Signed-off-by: Xiao Zeng <zengxiao@eswincomputing.com>

Diff:
---
 newlib/libc/string/strcspn.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/newlib/libc/string/strcspn.c b/newlib/libc/string/strcspn.c
index abaa93ad6..8ac0bf10c 100644
--- a/newlib/libc/string/strcspn.c
+++ b/newlib/libc/string/strcspn.c
@@ -37,12 +37,10 @@ strcspn (const char *s1,
       for (c = s2; *c; c++)
 	{
 	  if (*s1 == *c)
-	    break;
+	    goto end;
 	}
-      if (*c)
-	break;
       s1++;
     }
-
+end:
   return s1 - s;
 }