libapse.lib: do not use "dirname" and "basename": bash provides primitives to do that

Signed-off-by: Davide Madrisan <davide.madrisan@gmail.com>

ChangeLog

@@ -53,6 +53,10 @@ Changes in version 1.12.3
   * lib/libapse.lib, lib/libspec.lib - Davide Madrisan:
     Style fixes.
 
++ improvement
+  * lib/libapse.lib - Davide Madrisan:
+    Do not use 'dirname' and 'basename': bash provides primitives to do that.
+
 -------------------------------------------------------------------------------
 
 Changes in version 1.12.2

lib/libapse.lib.in

@@ -311,10 +311,10 @@ ${proxy:+ --proxy $proxy}${proxy_user:+ --proxy-user $proxy_user}"
       notify.debug "$FUNCNAME: skipping ${apse_site_name[0]}"
    else
       if [[ "$pckurl" =~ .*://.* ]]; then
-         local pckurldir="`dirname $pckurl`/"
+         local pckurldir="${pckurl%/*}/"
          notify.debug "$FUNCNAME: pckurldir = $pckurldir"
 
-         local pcknameverbatim=`basename $pckurlverbatim`
+         local pcknameverbatim="${pckurlverbatim##*/}"
          notify.debug "$FUNCNAME: pcknameverbatim = $pcknameverbatim"
 
          curr_curl_url="$pckurldir"