buildtree: fix has_changes condition

lib/iso/chrootcfg.sh

@@ -168,7 +168,7 @@ write_unpackfs_conf(){
     yaml+=$(write_yaml_map 0 'unpack')
     yaml+=$(write_yaml_seq_map 2 'source' "/run/artix/bootmnt/artix/x86_64/rootfs.sfs")
     yaml+=$(write_yaml_map 4 'sourcefs' 'squashfs')
-    yaml+=$(write_yaml_map 4 'destination' '')
+    yaml+=$(write_yaml_map 4 'destination' '""')
     yaml+=$(write_empty_line)
     printf '%s' "${yaml}"
 }

lib/iso/grub.sh

@@ -32,7 +32,7 @@ prepare_initramfs(){
         su ${OWNER} -c "gpg --export ${GPG_KEY} >/tmp/GPG_KEY"
         exec 17<>/tmp/GPG_KEY
     fi
-    local _kernel=$(cat $mnt/usr/lib/modules/*/version)
+    local _kernel=$(<$mnt/usr/src/linux/version)
     ARTIX_GNUPG_FD=${GPG_KEY:+17} artools-chroot $mnt \
         /usr/bin/mkinitcpio -k ${_kernel} \
         -c /etc/mkinitcpio-artix.conf \

lib/pkg/subrepo.sh

@@ -81,7 +81,7 @@ pull_tree(){
     local remote_head=$(get_remote_head)
 
     msg "Checking %s (%s)" "${tree}" "$os"
-    if $(has_changes "${local_head}" "${remote_head}");then
+    if has_changes "${local_head}" "${remote_head}";then
         git pull origin master
     fi
 }