rst2man: convert `which` to `command -v`

Signed-off-by: Kayla Firestack <dev@kaylafire.me>

diff --git a/Makefile b/Makefile
index ee3f8fbc72eb516750582f5fdf8547b5c0afd882..d7886276b663e5b1effdca3d10c74b2d2cb52418 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -66,9 +66,9 @@ else
        INITRAMFS_DIR=/etc/initramfs-tools
 endif
 
-RST2MAN:=$(shell which rst2man)
+RST2MAN:=$(shell command -v rst2man)
 ifeq ($(RST2MAN),)
-       RST2MAN:=$(shell which rst2man.py)
+       RST2MAN:=$(shell command -v rst2man.py)
        ifeq ($(RST2MAN),)
                @echo "WARNING: no rst2man found! Man page not generated."
        endif