shlwapi: Only skip 'localhost' in file URLs in UrlCanonicalize.

dlls/shlwapi/tests/url.c

@@ -160,6 +160,7 @@ static const TEST_URL_CANONICALIZE TEST_CANONICALIZE[] = {
     {"A", 0, S_OK, "A", FALSE},
     {"/uri-res/N2R?urn:sha1:B3K", URL_DONT_ESCAPE_EXTRA_INFO | URL_WININET_COMPATIBILITY /*0x82000000*/, S_OK, "/uri-res/N2R?urn:sha1:B3K", FALSE} /*LimeWire online installer calls this*/,
     {"http:www.winehq.org/dir/../index.html", 0, S_OK, "http:www.winehq.org/index.html"},
+    {"http://localhost/test.html", URL_FILE_USE_PATHURL, S_OK, "http://localhost/test.html"}
 };
 
 /* ################ */

dlls/shlwapi/url.c

@@ -359,6 +359,7 @@ HRESULT WINAPI UrlCanonicalizeW(LPCWSTR pszUrl, LPWSTR pszCanonicalized,
             if (*wk1 != '/') {state = 6; break;}
             *wk2++ = *wk1++;
             if((dwFlags & URL_FILE_USE_PATHURL) && nByteLen >= sizeof(wszLocalhost)
+                        && !strncmpW(wszFile, pszUrl, sizeof(wszFile)/sizeof(WCHAR))
                         && !memcmp(wszLocalhost, wk1, sizeof(wszLocalhost))){
                 wk1 += sizeof(wszLocalhost)/sizeof(WCHAR);
                 while(*wk1 == '\\' && (dwFlags & URL_FILE_USE_PATHURL))