Bug 931429 - Fix PR_LOG compiling error for sandbox code on Linux. r=kang

security/sandbox/Sandbox.cpp

@@ -30,7 +30,7 @@ namespace mozilla {
 #define LOG_ERROR(args...) __android_log_print(ANDROID_LOG_ERROR, "Sandbox", ## args)
 #elif defined(PR_LOGGING)
 static PRLogModuleInfo* gSeccompSandboxLog;
-#define LOG_ERROR(args...) PR_LOG(gSeccompSandboxLog, PR_LOG_ERROR, ## args)
+#define LOG_ERROR(args...) PR_LOG(gSeccompSandboxLog, PR_LOG_ERROR, (args))
 #else
 #define LOG_ERROR(args...)
 #endif