gnunet: update to svn r36986

fixes bug in resolver logic which was exposed by recent fixes in
various C Standard libraries including musl.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>

net/gnunet/Makefile

@@ -8,7 +8,7 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=gnunet
-PKG_SOURCE_VERSION:=36953
+PKG_SOURCE_VERSION:=36986
 PKG_VERSION:=0.10.1-svn$(PKG_SOURCE_VERSION)
 PKG_RELEASE:=1