hexdump: set WARNERR to NO (failures on gcc-8, should be fixed upstream)

hexdump/Makefile

@@ -7,6 +7,17 @@ LINKS=	${BINDIR}/hexdump ${BINDIR}/od
 COPTS.conv.c += -Wno-format-nonliteral
 COPTS.display.c += -Wno-format-nonliteral
 
+# Disable -Werror because of warning with gcc-8
+# parse.c:314:5: error: 'strncpy' output truncated copying 1 byte from a string of length 2 [-Werror=stringop-truncation]
+#      strncpy(cs, PRId64, sizeof(PRId64) - 2);
+#      ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+# parse.c:378:7: error: 'strncpy' output truncated copying 1 byte from a string of length 2 [-Werror=stringop-truncation]
+#        strncpy(cs, PRId64,
+#        ^~~~~~~~~~~~~~~~~~~
+#         sizeof(PRId64) - 2);
+#        ~~~~~~~~~~~~~~~~~~~
+WARNERR =	no
+
 .include <mkc.init.mk>
 
 .include "../mk/hacks.mk"