$title Test GDX environment variables with trailing blanks (GDXCOPY5,SEQ=451)

$onText
Trailing or leading blanks in the GDX environment variables caused
the automatically translation via gdxcopy to fail. There was no indication
why the gdxcopy failed, other than a usage screen.

In GAMS we have to work hard to get a trailing blank, in shell script
this error is easily made.
$offText

$ifI %system.platform% == DEX $exit No V6 GDX exists for this platform
$ifI %system.platform% == DAX $exit No V6 GDX exists for this platform
$ifI %system.platform% == LAX $exit No V6 GDX exists for this platform

$setEnv GDXCONVERT "v6 "
$setEnv GDXCOMPRESS "1 "

set dummy /1/;

* This will trigger an execution error in GAMS23.2 and previous
execute_unload 'dummy.gdx', dummy;