[Ohrrpgce] SVN: teeemcee/11866 Cleanup code for various string script commands

[subversion at HamsterRepublic.com]

teeemcee
2020-06-01 00:53:17 -0700 (Mon, 01 Jun 2020)
191
Cleanup code for various string script commands

Fixed a possible crash on invalid string ID in "ascii from string".
And "extract color" can return alpha component too now (which is useless).
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U   wip/scriptcommands.bas