[BUGFIX] Fix 2 CGL violations in alt_shortcut.php.

on metrics.typo3.org the violations drilldown says
that is 1 violation against
"FunctionCallArgumentSpacingNoSpaceAfterEquals"
and 1 violation against
"FunctionCallArgumentSpacingNoSpaceBeforeEquals":
both in typo3/alt_shortcut.php.

this should be fixed.

after that i guess these 2 coding guidline sniffs
could be activated in the CI-server jobs?

Change-Id: I4ff9d4f57f97e2f502088d8d6026544615331cd6
Fixes: #37139
Releases: 6.0
Reviewed-on: http://review.typo3.org/11157
Reviewed-by: Roland Waldner
Tested-by: Roland Waldner
Reviewed-by: Georg Ringer
Tested-by: Georg Ringer