Invert meaning back to what was intended

Author: greg0ire

doc/Vdebug.txt

@@ -232,8 +232,8 @@ then use this instead of php when debugging. For instance, instead of "php
 myscript.php", run "php-xdebug myscript.php" to start the debugger session.
 
 You are now officially ready to start debugging with PHP. However, if you've
-become unstuck at any point then there are plenty of Google tutorials on
-setting up Xdebug, or you can email me and I'll do my best to help.
+become stuck at any point then there are plenty of Google tutorials on setting
+up Xdebug, or you can email me and I'll do my best to help.
 
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 3.2 Python set up                                          *VdebugSetUpPython*