write_sensu: use sstrncpy

Fixes:
  CC       src/write_sensu.lo
src/write_sensu.c: In function ‘replace_str’:
src/write_sensu.c:630:3: warning: ‘strncpy’ output truncated before terminating nul copying as many bytes from a string as its length [-Wstringop-truncation]
   strncpy(r, p, strlen(p));
   ^~~~~~~~~~~~~~~~~~~~~~~~
  CCLD     write_sensu.la

diff --git a/src/write_sensu.c b/src/write_sensu.c
index 71dd585..a9f621d 100644 (file)
--- a/src/write_sensu.c
+++ b/src/write_sensu.c
@@ -627,7 +627,7 @@ static char *replace_str(const char *str, const char *old, /* {{{ */
     r += newlen;
     p = q + oldlen;
   }
-  strncpy(r, p, strlen(p));
+  sstrncpy(r, p, sizeof(r));
 
   return ret;
 } /* }}} char *replace_str */