EbuildBuild: pass ebuild_path to EbuildFetcher

This avoids a redundant pordbapi.findname() call.
diff --git a/pym/_emerge/EbuildBuild.py b/pym/_emerge/EbuildBuild.py
index 1776d1e..0144cfc 100644
--- a/pym/_emerge/EbuildBuild.py
+++ b/pym/_emerge/EbuildBuild.py
@@ -123,6 +123,7 @@
 			else:
 				fetcher = EbuildFetcher(
 					config_pool=self.config_pool,
+					ebuild_path=self._ebuild_path,
 					fetchall=self.opts.fetch_all_uri,
 					fetchonly=self.opts.fetchonly,
 					background=False,