regedit: Move regedit.c functions from regproc.h to main.h.

programs/regedit/main.h

@@ -141,6 +141,10 @@ extern LPCWSTR GetValueName(HWND hwndLV);
 extern BOOL ListWndNotifyProc(HWND hWnd, WPARAM wParam, LPARAM lParam, BOOL *Result);
 extern BOOL IsDefaultValue(HWND hwndLV, int i);
 
+/* regedit.c */
+void WINAPIV output_message(unsigned int id, ...);
+void WINAPIV error_exit(unsigned int id, ...);
+
 /* regproc.c */
 void *heap_xalloc(size_t size);
 void *heap_xrealloc(void *buf, size_t size);

programs/regedit/regproc.h

@@ -23,6 +23,3 @@
 
 #define REG_FORMAT_5 1
 #define REG_FORMAT_4 2
-
-void WINAPIV output_message(unsigned int id, ...);
-void WINAPIV error_exit(unsigned int id, ...);