repo-ng: Update

Change-Id: I9bf2f75d43071c1f740deb8ca3acaf6906682923
diff --git a/repo-ng/debian/rules b/repo-ng/debian/rules
index 97288fa..2c7b2bf 100755
--- a/repo-ng/debian/rules
+++ b/repo-ng/debian/rules
@@ -11,7 +11,7 @@
 
 LDFLAGS := $(shell dpkg-buildflags --get LDFLAGS)
 CXXFLAGS := $(shell dpkg-buildflags --get CXXFLAGS)
-CXXFLAGS += -std=c++11
+CXXFLAGS += -std=c++14
 LIBDIR := /usr/lib/$(shell dpkg-architecture -qDEB_HOST_MULTIARCH)
 
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