grml2iso: extend error message of required ISO generation tools with xorriso

diff --git a/grml2iso b/grml2iso
index 4556917..31d8acd 100755 (executable)
--- a/grml2iso
+++ b/grml2iso
@@ -29,7 +29,7 @@ elif which mkisofs >/dev/null 2>&1; then
 elif which genisoimage >/dev/null 2>&1; then
   MKISOFS='genisoimage'
 else
 elif which genisoimage >/dev/null 2>&1; then
   MKISOFS='genisoimage'
 else

-  echo >&2 "Error: neither mkisofs nor genisoimage available - can not create ISO."
+  echo "Error: neither xorriso nor mkisofs nor genisoimage available - can not create ISO." >&2

   exit 1
 fi
 
   exit 1
 fi