[SHELL32] Don't close Run dialog on execution failure (reactos#7686)

CORE-19983

Author: whindsaks

dll/win32/shell32/dialogs/dialogs.cpp

@@ -583,7 +583,7 @@ static INT_PTR CALLBACK RunDlgProc(HWND hwnd, UINT message, WPARAM wParam, LPARA
                     INT ic;
                     WCHAR *psz, *pszExpanded, *parent = NULL;
                     DWORD cchExpand;
-                    SHELLEXECUTEINFOW sei;
+                    SHELLEXECUTEINFOW sei = { sizeof(sei) };
                     NMRUNFILEDLGW nmrfd;
 
                     ic = GetWindowTextLengthW(htxt);
@@ -593,9 +593,6 @@ static INT_PTR CALLBACK RunDlgProc(HWND hwnd, UINT message, WPARAM wParam, LPARA
                         return TRUE;
                     }
 
-                    ZeroMemory(&sei, sizeof(sei));
-                    sei.cbSize = sizeof(sei);
-
                     /*
                      * Allocate a new MRU entry, we need to add two characters
                      * for the terminating "\\1" part, then the NULL character.
@@ -694,7 +691,7 @@ static INT_PTR CALLBACK RunDlgProc(HWND hwnd, UINT message, WPARAM wParam, LPARA
                                 EndDialog(hwnd, IDOK);
                                 break;
                             }
-                            else if (SUCCEEDED(ShellExecuteExW(&sei)))
+                            else if (ShellExecuteExW(&sei))
                             {
                                 /* Call GetWindowText again in case the contents of the edit box have changed. */
                                 GetWindowTextW(htxt, psz, ic + 1);