Makefile: pass -Wno-pendantic under GENERATE_COMPILATION_DATABASE=yes

The same bug fixed in the "COMPUTE_HEADER_DEPENDENCIES=auto" mode in
the preceding commit was also present with
"GENERATE_COMPILATION_DATABASE=yes". Let's fix it so it works again
with "DEVOPTS=1".

Signed-off-by: Ævar Arnfjörð Bjarmason <[email protected]>
Signed-off-by: Junio C Hamano <[email protected]>

Author: avar

Makefile

@@ -1310,6 +1310,7 @@ endif
 
 ifeq ($(GENERATE_COMPILATION_DATABASE),yes)
 compdb_check = $(shell $(CC) $(ALL_CFLAGS) \
+	-Wno-pedantic \
 	-c -MJ /dev/null \
 	-x c /dev/null -o /dev/null 2>&1; \
 	echo $$?)