move DeleteScriptFileStruct from a private to a public function. This allows for better memory cleanup when errors occur.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@10906 6f19259b-4bc3-4df7-8a09-765794883524

ShellPkg/Include/Library/ShellCommandLib.h

@@ -419,6 +419,17 @@ ShellCommandSetNewScript (
   IN SCRIPT_FILE *Script OPTIONAL
   );
 
+/**
+  Function to cleanup all memory from a SCRIPT_FILE structure.
+
+  @param[in] Script     The pointer to the structure to cleanup.
+**/
+VOID
+EFIAPI
+DeleteScriptFileStruct (
+  IN SCRIPT_FILE *Script
+  );
+
 /**
   Function to get the current Profile string.