Fixes: https://autobuild.buildroot.net/results/0f856def945b9a863f45f7a58553b62f6875720b/ Commita02e437417("fs/erofs: add custom compression option with optional compress-hints file") added logic for custom compression, but in fact it did not work. BR2_TARGET_ROOTFS_EROFS_COMPRESSION_{ALGORITHMS,HINTS} are kconfig string variables, so we need to use qstrip rather than strip. Signed-off-by: Peter Korsgaard <peter@korsgaard.com> Signed-off-by: Arnout Vandecappelle <arnout@rnout.be> (cherry picked from commit585eeb4640) Signed-off-by: Thomas Perale <thomas.perale@mind.be>