libnetwork.lib: simplify sed expression

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

lib/libnetwork.lib.in

@@ -55,8 +55,8 @@ function repository.get_srpm_pckname_from_HTML() {
 
    local pckname_from_HTML=($(tr A-Z a-z < $infile | \
       sed -n "# remove HTML tags --> get a better input
-         /<[aA] [hH][rR][eE][fF]=\".*\.src\.rpm\"/{
-            s|.*<[aA] [hH][rR][eE][fF]=\"\([^\"]*\)\".*|\1|
+         /<a href=\".*\.src\.rpm\"/{
+            s|.*<a href=\"\([^\"]*\)\".*|\1|
                {/$regexpr/p}}"))
    echo "${pckname_from_HTML[*]}"
 }