makefiles: rename H_FILE_LIST and C_FILE_LIST

To HDRS and SRCS, respectively.

To be more consistent with the OBJS variable.

Misc: These names also appear to be more common from the makefiles that
I've seen.

Commands used to search and replace:

    git grep -IFlz -e H_FILE_LIST -e C_FILE_LIST -- src |
        xargs -0 -I '{}' sh -c "printf '%s\n' \"\$(sed \
            -e 's/^H_FILE_LIST *=/HDRS =/' \
            -e 's/\$(H_FILE_LIST)/\$(HDRS)/g' \
            -e 's/^C_FILE_LIST *=/SRCS =/' \
            -e 's/\$(C_FILE_LIST:/\$(SRCS:/g' \
            '{}')\" >'{}'"

1 files changed, 3 insertions, 3 deletions

diff --git a/src/common.mk b/src/common.mk
index 30ba2b494..07082e183 100644
--- a/src/common.mk
+++ b/src/common.mk
@@ -2,9 +2,9 @@
 #
 # Note: $(ROOT)/config.mk must be included before this file.
 
-H_FILE_LIST       = $(sort $(wildcard *.h))
-C_FILE_LIST       = $(sort $(wildcard *.c))
-OBJS = $(C_FILE_LIST:.c=.o)
+HDRS = $(sort $(wildcard *.h))
+SRCS = $(sort $(wildcard *.c))
+OBJS = $(SRCS:.c=.o)
 
 CFLAGS += -ggdb $(HAVE_FATAL_WARNINGS) -O2 -DVERSION='"$(VERSION)"' $(HAVE_GCOV)
 CFLAGS += -DPREFIX='"$(prefix)"' -DSYSCONFDIR='"$(sysconfdir)/firejail"' -DLIBDIR='"$(libdir)"' -DBINDIR='"$(bindir)"'   -DVARDIR='"/var/lib/firejail"'