[SHELL32] SHELL_FindExecutable: Fix last regression from PR#7588

Author: Doug-Lyons

dll/win32/shell32/shlexec.cpp

@@ -802,6 +802,15 @@ static UINT SHELL_FindExecutable(LPCWSTR lpPath, LPCWSTR lpFile, LPCWSTR lpVerb,
         xlpFile[0] = '\0';
     }
 
+  /* Clear any trailing periods */
+  for (INT i = wcslen(xlpFile); i >= 0; i--)
+  {
+      if (i > 0 && xlpFile[i - 1] == '.')
+          xlpFile[i - 1] = 0;
+      else
+          break;
+   }
+
     attribs = GetFileAttributesW(lpFile);
     if (attribs != INVALID_FILE_ATTRIBUTES && (attribs & FILE_ATTRIBUTE_DIRECTORY))
     {