backport build system: don't pipe yes '' to defconfig

There's no need to pipe yes '' to make defconfig since
it will not ask for anything anyway, and even if it did
the user should probably be asked ...

Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/backport/Makefile.real b/backport/Makefile.real
index fc02bd826d093771be25caa9f0ede76c565bc640..243f904fbed180e7606a6cd10efafe0baca74956 100644 (file)
--- a/backport/Makefile.real
+++ b/backport/Makefile.real
@@ -37,7 +37,7 @@ defconfig-%::
        @./kconfig/conf --defconfig=defconfigs/$(@:defconfig-%=%) Kconfig
 
 .config:
-       @test -f defconfig && (yes '' | $(MAKE) usedefconfig) || (      \
+       @test -f defconfig && $(MAKE) usedefconfig || (                 \
        echo "/--------------"                                          ;\
        echo "| Your backport package isn't configured, please configure it" ;\
        echo "| using one of the following options:"                    ;\