Esme Povirk (@madewokherd) commented about dlls/comdlg32/cdlg32.c:
/* SHELL */ GPA(COMDLG32_SHSimpleIDListFromPathAW, SHELL32_hInstance, (LPCSTR)162);
break;
actctx.cbSize = sizeof(actctx);
actctx.hModule = COMDLG32_hInstance;
actctx.lpResourceName = MAKEINTRESOURCEW(123);
actctx.dwFlags = ACTCTX_FLAG_HMODULE_VALID | ACTCTX_FLAG_RESOURCE_NAME_VALID;
COMDLG32_hActCtx = CreateActCtxW(&actctx);
if (COMDLG32_hActCtx == INVALID_HANDLE_VALUE)
ERR("failed to create activation context, last error %lu\n", GetLastError());
The surrounding code is using tabs, and this uses spaces.