Pullup ticket #4299 - requested by tron
Build fix for "ngrep" for GNU make 4.0.

Revisions pulled up:
- net/ngrep/distinfo                                            1.15
- net/ngrep/patches/patch-ab                                    1.7

---
   Module Name:	pkgsrc
   Committed By:	tron
   Date:		Tue Jan 14 22:43:20 UTC 2014

   Modified Files:
   	pkgsrc/net/ngrep: distinfo
   	pkgsrc/net/ngrep/patches: patch-ab

   Log Message:
   Fix build with GNU Make 4.0 and newer.
Pullup ticket #4299