Make autobake-deb.sh to omit .git directory from source tar.gz

This is useful for developers who run autobake-deb.sh directly
from the source tree as the resulting source tar package will be
90% smaller and all operations regarding it consequently 10x faster.

debian/autobake-deb.sh

@@ -77,8 +77,9 @@ dch -b -D ${CODENAME} -v "${UPSTREAM}${PATCHLEVEL}-${RELEASE_NAME}${RELEASE_EXTR
 echo "Creating package version ${UPSTREAM}${PATCHLEVEL}-${RELEASE_NAME}${RELEASE_EXTRA:+-${RELEASE_EXTRA}}1~${CODENAME} ... "
 
 # Build the package.
-#
-fakeroot dpkg-buildpackage -us -uc
+# Pass -I so that .git and other unnecessary temporary and source control files
+# will be ignored by dpkg-source when createing the tar.gz source package
+fakeroot dpkg-buildpackage -us -uc -I
 
 [ -e debian/autorm-file ] && rm -vf `cat debian/autorm-file`