[PATCH] usr: shorten cmd_initfs in Makefile

[Masahiro Yamada]

Avoid repetition of long variables.

No functional change intended.

Signed-off-by: Masahiro Yamada <masahiroy@xxxxxxxxxx>
---

 usr/Makefile | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/usr/Makefile b/usr/Makefile
index 132ef7e96e6d..75224d927025 100644
--- a/usr/Makefile
+++ b/usr/Makefile
@@ -62,9 +62,9 @@ $(deps_initramfs): ;
 quiet_cmd_initfs = GEN     $@
       cmd_initfs = \
 	$(CONFIG_SHELL) $< -o $@ -l $(obj)/.initramfs_data.cpio.d \
-	$(if $(CONFIG_INITRAMFS_ROOT_UID), -u $(CONFIG_INITRAMFS_ROOT_UID)) \
-	$(if $(CONFIG_INITRAMFS_ROOT_GID), -g $(CONFIG_INITRAMFS_ROOT_GID)) \
-	$(if $(KBUILD_BUILD_TIMESTAMP), -d "$(KBUILD_BUILD_TIMESTAMP)") \
+	$(addprefix -u , $(CONFIG_INITRAMFS_ROOT_UID)) \
+	$(addprefix -g , $(CONFIG_INITRAMFS_ROOT_GID)) \
+	$(patsubst %,-d "%", $(KBUILD_BUILD_TIMESTAMP)) \
 	$(ramfs-input)
 
 # We rebuild initramfs_data.cpio if:
-- 
2.40.1