logger: ensure program writes everything to syslog file descriptor

It is fair assumption messages an user is asking to be wrote will be
attempted to be wrote as hard as possible.

Signed-off-by: Sami Kerola <kerolasa@iki.fi>

misc-utils/logger.c

@@ -51,6 +51,7 @@
 #include <netdb.h>
 #include <getopt.h>
 
+#include "all-io.h"
 #include "c.h"
 #include "closestream.h"
 #include "nls.h"
@@ -281,8 +282,8 @@ static void mysyslog(int fd, int logflags, int pri, char *tag, char *msg)
                snprintf(buf, sizeof(buf), "<%d>%.15s %.200s%s: %.400s",
 			pri, tp, cp, pid, msg);
 
-               if (write(fd, buf, strlen(buf)+1) < 0)
-                       return; /* error */
+	       if (write_all(fd, buf, strlen(buf)+1) < 0)
+		       warn(_("write failed"));
        }
 }