Code style change.

api/public/cors.php

classes/library_render.php

cli/ast_filter_tester.php

cli/maximalibcheck.php

corsscripts/cors.php

doc/docslib.php

doc/maintenance.php

questiontype.php

stack/cas/cassession2.class.php

stack/cas/castext2/blocks/iframe.block.php

stack/cas/castext2/castext2_evaluatable.class.php

stack/cas/connector.class.php

stack/cas/connectorhelper.class.php

stack/cas/keyval.class.php

stack/cas/parsingrules/201_sig_figs_validation.filter.php

...cas/parsingrules/202_decimal_places_validation.filter.php

stack/cas/parsingrules/450_split_floats.filter.php

stack/cas/parsingrules/801_singleton_numeric.filter.php

stack/cas/parsingrules/802_singleton_units.filter.php

...k/cas/parsingrules/910_inert_float_for_display.filter.php