- Also raise a different error message if we don't specify any package at all.

# We might consider giving the 'pear help uninstall' output to the user?

pear/PEAR/Installer.php

@@ -100,6 +100,9 @@ class PEAR_Installer extends PEAR_Common
 
     function _deletePackageFiles($package)
     {
+        if (!strlen($package)) {
+            return $this->raiseError("No package to uninstall given");
+        }
         $filelist = $this->registry->packageInfo($package, 'filelist');
         if ($filelist == null) {
             return $this->raiseError("$package not installed");