Fix for 'Undefined offset: 1 (/usr/local/statusnet/lib/liberalstomp.php:136)' messages in statusnet log

*vc-diff*.diff

diff --git a/lib/liberalstomp.php b/lib/liberalstomp.php
index 70c22c1..3a2358c 100644
--- a/lib/liberalstomp.php
+++ b/lib/liberalstomp.php
@@ -77,7 +77,7 @@ class LiberalStomp extends Stomp
         if (!$this->hasFrameToRead()) {
             return false;
         }
-        
+
         $rb = 1024;
         $data = '';
         $end = false;
@@ -116,7 +116,7 @@ class LiberalStomp extends Stomp
 
         return array_map(array($this, 'parseFrame'), $frames);
     }
-    
+
     /**
      * Parse a raw Stomp frame into an object.
      * Extracted from Stomp::readFrame()
@@ -129,9 +129,10 @@ class LiberalStomp extends Stomp
         list ($header, $body) = explode("\n\n", $data, 2);
         $header = explode("\n", $header);
         $headers = array();
-        $command = null;
+        unset($command);
         foreach ($header as $v) {
-            if (isset($command)) {
+	  if (isset($command) and !empty($command)) {
                 list ($name, $value) = explode(':', $v, 2);
                 $headers[$name] = $value;
             } else {
@@ -173,4 +174,3 @@ class LiberalStomp extends Stomp
         }
     }
  }
-