Issue 152: Fix error message from mget

memcached.c

@@ -764,6 +764,12 @@ static void out_string(conn *c, const char *str) {
     if (settings.verbose > 1)
         fprintf(stderr, ">%d %s\n", c->sfd, str);
 
+    /* Nuke a partial output... */
+    c->msgcurr = 0;
+    c->msgused = 0;
+    c->iovused = 0;
+    add_msghdr(c);
+
     len = strlen(str);
     if ((len + 2) > c->wsize) {
         /* ought to be always enough. just fail for simplicity */

t/issue_152.t

@@ -0,0 +1,17 @@
+#!/usr/bin/perl
+
+use strict;
+use Test::More tests => 2;
+use FindBin qw($Bin);
+use lib "$Bin/lib";
+use MemcachedTest;
+
+my $server = new_memcached();
+my $sock = $server->sock;
+my $key = "a"x251;
+
+print $sock "set a 1 0 1\r\na\r\n";
+is (scalar <$sock>, "STORED\r\n", "Stored key");
+
+print $sock "get a $key\r\n";
+is (scalar <$sock>, "CLIENT_ERROR bad command line format\r\n", "illegal key");