message: Old clang doesn't understand 2-arg deprecation
diff: #endif
  #ifdef SWIG
  -#define ZNC_MSG_DEPRECATED(msg, repl)
  -#elif defined(__clang__)
  -#define ZNC_MSG_DEPRECATED(msg, repl) __attribute__((deprecated(msg, repl)))
  +#define ZNC_MSG_DEPRECATED(msg)
  #else
  -#define ZNC_MSG_DEPRECATED(msg, repl) __attribute__((deprecated(msg)))
  +#define ZNC_MSG_DEPRECATED(msg) __attribute__((deprecated(msg)))
  #endif
  #include <znc/zncconfig.h>
  @@ -127,7 +125,7 @@ class CMessage {
  /// @deprecated use GetParamsColon() instead.
  CString GetParams(unsigned int uIdx, unsigned int uLen = -1) const
  - ZNC_MSG_DEPRECATED("Use GetParamsColon() instead", "GetParamsColon") {
  + ZNC_MSG_DEPRECATED("Use GetParamsColon() instead") {
  return GetParamsColon(uIdx, uLen);
  }
  CString GetParamsColon(unsigned int uIdx, unsigned int uLen = -1) const;
  