tdeinit: Fixed env. variable name (TWIN->TDEWM).

This is how it is mentioned in starttde and should have been
according to renaming (KDEWM->TDEWM).

Signed-off-by: Mavridis Philippe <mavridisf@gmail.com>

tdeinit/phase1.cpp

@@ -61,8 +61,8 @@ int main(int argc, char **argv)
 	TQString wmToLaunch = config.readEntry("WMExecutable", "");
 	TQString wmArguments = config.readEntry("WMAdditionalArguments", "");
 
-	// Check for TWIN override environment variable
-	const char * twin_env = getenv("TWIN");
+	// Check for TDEWM override environment variable
+	const char * twin_env = getenv("TDEWM");
 	if (twin_env) {
 		wmToLaunch = twin_env;
 	}