Remove deferred execution for enter command in _forgit_log

bin/git-forgit

@@ -102,16 +102,21 @@ _forgit_log_preview() {
     echo "$sha" | xargs -I% git show --color=always -U"$_forgit_preview_context" % -- "$@" | $_forgit_show_pager
 }
 
+_forgit_log_enter() {
+    sha=$(echo "$1" | _forgit_extract_sha)
+    shift
+    echo "$sha" | xargs -I% "${FORGIT}" diff %^! "$@"
+}
+
 # git commit viewer
 _forgit_log() {
     _forgit_inside_work_tree || return 1
     local opts graph files log_format enter_cmd
     files=$(sed -nE 's/.*-- (.*)/\1/p' <<< "$*") # extract files parameters for `git show` command
-    enter_cmd="echo {} | $_forgit_extract_sha | xargs -I% ${FORGIT} diff %^! $files"
     opts="
         $FORGIT_FZF_DEFAULT_OPTS
         +s +m --tiebreak=index
-        --bind=\"enter:execute($enter_cmd)\"
+        --bind=\"enter:execute($FORGIT log_enter \"{}\" $files)\"
         --bind=\"ctrl-y:execute-silent($FORGIT yank_sha {})\"
         --preview=\"$FORGIT log_preview \"{}\" $files\"
         $FORGIT_LOG_FZF_OPTS
@@ -730,6 +735,7 @@ private_commands=(
     "revert_preview"
     "yank_sha"
     "log_preview"
+    "log_enter"
 )
 
 cmd="$1"