Use strcspn to remove \n from fgets result. Prompted by change by Ray

Lai of OpenBSD via Björn Sandell.


git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@19213 ec53bebd-3082-4978-b11e-865c3cabbd6b

lib/sl/sl.c

@@ -191,8 +191,7 @@ readline(char *prompt)
     fflush (stdout);
     if(fgets(buf, sizeof(buf), stdin) == NULL)
 	return NULL;
-    if (buf[strlen(buf) - 1] == '\n')
-	buf[strlen(buf) - 1] = '\0';
+    buf[strcspn(buf, "\r\n")] = '\0';
     return strdup(buf);
 }