deskutils/kmail: Add CPE information

Approved by:	portmgr (blanket)

deskutils/kmail/Makefile

@@ -22,7 +22,8 @@ RUN_DEPENDS=	accountwizard:deskutils/kmail-account-wizard \
 		mboximporter:deskutils/mbox-importer \
 		sieveeditor:deskutils/pim-sieve-editor
 
-USES=		cmake compiler:c++11-lib desktop-file-utils gettext kde:5 qt:5 tar:xz
+USES=		cmake compiler:c++11-lib cpe desktop-file-utils gettext kde:5 qt:5 tar:xz
+CPE_VENDOR=	kde
 USE_KDE=	auth bookmarks codecs completion config configwidgets \
 		coreaddons crash dbusaddons guiaddons i18n iconthemes imap \
 		itemmodels itemviews jobwidgets kcmutils kdelibs4support kio \