[importer] Use G_MODULE_SUFFIX
[importer] Use G_MODULE_SUFFIX

Fixes build on cygwin.

Patch by yselkowitz@users.sourceforge.net

magcius/gjs,endlessm/gjs,joeshaw/gjs,magcius/gjs,joeshaw/gjs,pixunil/cjs,pixunil/cjs,joeshaw/gjs,endlessm/gjs,mtwebster/cjs,joeshaw/gjs,magcius/gjs,djdeath/gjs,mtwebster/cjs,djdeath/gjs,magcius/gjs,pixunil/cjs,mtwebster/cjs,djdeath/gjs,endlessm/gjs,joeshaw/gjs,djdeath/gjs,djdeath/gjs,pixunil/cjs,mtwebster/cjs,endlessm/gjs,pixunil/cjs,mtwebster/cjs,magcius/gjs,endlessm/gjs