fix regexps

bin/epm

@@ -425,7 +425,7 @@ check_filenames()
         elif [ -d "$opt" ] ; then
             has_space $opt && warning "There are space(s) in directory path '$opt', it is not supported. Skipped" && continue
             pkg_dirs="$pkg_dirs $opt"
-        elif echo "$opt" | grep -q "://" ; then
+        elif echo "$opt" | grep -q "^[fhtps]*://" ; then
             has_space $opt && warning "There are space(s) in URL '$opt', it is not supported. Skipped" && continue
             pkg_urls="$pkg_urls $opt"
         else

bin/epm-release_upgrade

@@ -47,8 +47,8 @@ __detect_alt_release_by_repo()
 {
 	local BRD=$(cat /etc/apt/sources.list /etc/apt/sources.list.d/*.list \
 		| grep -v "^#" \
-		| grep "[tpc][5-9]\.?[0-9]?/branch/" \
-		| sed -e "s|.*\([tpc][5-9]\.?[0-9]?\)/branch.*|\1|g" \
+		| egrep "[tpc][5-9]\.?[0-9]?/branch/" \
+		| sed -e "s|.*\([tpc][5-9]\.\?[0-9]\?\)/branch.*|\1|g" \
 		| sort -u )
 	if [ "$(__wcount $BRD)" = "1" ] ; then
 		echo "$BRD"