How to remove white space

From: Album Credits: ---------------------------- Primary Artist:David Sanborn ---------------------------- Featuring: ---------------------------- Slam ---------------------------- David Sanborn : alto Saxophone ---------------------------- Marcus Miller : bass, Keyboards, Percussion Programming To: Album Credits: ---------------------------- Primary Artist:David Sanborn ---------------------------- Featuring: ---------------------------- Slam ---------------------------- David Sanborn:alto Saxophone ---------------------------- Marcus Miller:bass, Keyboards, Percussion Programming TEXT <== $regexp(%TEXT%,'[ \t]*:[ \t]*',':')

Note:
There are 7 trailing spaces on this line ...

"Primary Artist:David Sanborn_______" TEXT <== $regexp(%TEXT%,' *\r','\r')

DD.20151227.2110.CET

See also ...
/t/12513/1
/t/14683/1
/t/14712/1
/t/13576/1