[TxMt] Bug in DIALOG2

[Hans-Jörg Bibiko]

Hi,

I found a bug while argument parsing in several DIALOG2 commands:
[TM 2.0-alpha.9571]

E.g.:

"$DIALOG" x-insert --text "--Pitch"
"$DIALOG" tooltip --text "--Pitch"

if you execute theses commands (via CTRL+R or within a script) DIALOG2 will fail due to the fact that the text argument begins with two "-".

Cheers,
Hans