fix some unchecked return value warnings

From: Stefan Bühler <stbuehler@web.de>

git-svn-id: svn://svn.lighttpd.net/lighttpd/branches/lighttpd-1.4.x@3015 152afb58-edef-0310-8abb-c4023f1b3aa9

1 files changed, 2 insertions, 0 deletions

diff --git a/src/log.h b/src/log.h
index 7e924306..6cc2cfb0 100644
--- a/src/log.h
+++ b/src/log.h
@@ -3,6 +3,8 @@
 
 #include "server.h"
 
+ssize_t write_all(int fd, const void* buf, size_t count);
+
 /* Close fd and _try_ to get a /dev/null for it instead.
  * Returns 0 on success and -1 on failure (fd gets closed in all cases)
  */