kiss: Stop showing Git repositories in checksums

This is a backwards compatible change. The package manager will
for the time being /ignore/ checksums lines containing Git
repositories.

These aren't checksums and have no business living in the checksums
file. This file is now strictly for checksums. In the coming months,
this special handling will be lifted.

kiss

@@ -715,14 +715,10 @@ pkg_checksums() {
     [ -f "$repo_dir/sources" ] || return 0
 
     while read -r src _ || [ "$src" ]; do
-        # Skip comments and blank lines.
-        if [ -z "${src##\#*}" ]; then
+        # Skip comments, blank lines and git sources.
+        if [ -z "${src##\#*}" ] || [ -z "${src##git+*}" ]; then
             :
 
-        # Git source.
-        elif [ -z "${src##git+*}" ]; then
-            printf '%s\n' "$src" # This should probably be ':'.
-
         # Remote source.
         elif [ -z "${src##*://*}" ]; then
             sh256 "$src_dir/$1/${src##*/}"
@@ -745,14 +741,14 @@ pkg_checksums() {
 pkg_verify() {
     # Verify all package checksums. This is achieved by generating a new set
     # of checksums and then comparing those with the old set.
+    verify_cmd='NR==FNR{a[$1];next}/^git\+.*/{next}!(($1)in a){exit 1}'
+
     for pkg do repo_dir=$(pkg_find "$pkg")
         [ -f "$repo_dir/sources" ] || continue
 
-        pkg_checksums "$pkg" |
-
         # Check that the first column (separated by whitespace) match in both
         # checksum files. If any part of either file differs, mismatch. Abort.
-        awk 'NR==FNR{a[$1];next}!(($1)in a){exit 1}' - "$repo_dir/checksums" || {
+        pkg_checksums "$pkg" | awk "$verify_cmd" - "$repo_dir/checksums" || {
             log "$pkg" "Checksum mismatch"
 
             # Instead of dying above, log it to the terminal. Also define a