Bug 1087488: Remove some SPROP macro usages in Omnijar.cpp, to avoid triggering -Wtautological-compare clang warning. r=glandium

xpcom/build/Omnijar.cpp

@@ -60,9 +60,9 @@ Omnijar::InitOne(nsIFile* aPath, Type aType)
     if ((aType == APP) && (!sPath[GRE])) {
       nsCOMPtr<nsIFile> greDir, appDir;
       bool equals;
-      nsDirectoryService::gService->Get(SPROP(GRE), NS_GET_IID(nsIFile),
+      nsDirectoryService::gService->Get(sProp[GRE], NS_GET_IID(nsIFile),
                                         getter_AddRefs(greDir));
-      nsDirectoryService::gService->Get(SPROP(APP), NS_GET_IID(nsIFile),
+      nsDirectoryService::gService->Get(sProp[APP], NS_GET_IID(nsIFile),
                                         getter_AddRefs(appDir));
       if (NS_SUCCEEDED(greDir->Equals(appDir, &equals)) && equals) {
         sIsUnified = true;