Bug 1202266 - Suppress '-Wformat-security' in libstagefright CXXFLAGS. r=kentuckyfriedtakahe

--HG--
extra : rebase_source : a93c2b3648b6dd14bf0a679fa241e8780c693780

media/libstagefright/moz.build

@@ -156,6 +156,7 @@ elif CONFIG['GNU_CXX']:
     ]
     CXXFLAGS += [
         '-Wno-format',
+        '-Wno-format-security',
         '-Wno-multichar',
         '-Wno-sign-compare',
         '-Wno-unused',