Don't spam with warnings

KostyaSha · web-flow · commit eacea85d70e6 · 2016-07-22T03:23:56.000+03:00
@coverity using bsd tar??
diff --git a/.travis/travisci_build_coverity_scan.sh b/.travis/travisci_build_coverity_scan.sh
@@ -73,7 +73,7 @@ if [ ! -d $TOOL_BASE ]; then
     file $TOOL_ARCHIVE
     file $TOOL_ARCHIVE | grep HTML && cat $TOOL_ARCHIVE || :
     ls -la $TOOL_ARCHIVE
-    tar -xf $TOOL_ARCHIVE
+    tar -xf $TOOL_ARCHIVE | grep -v "Ignoring unknown extended header keyword"
   popd
 fi
 
