Translate bzr ignores into git ignores.

.gitignore

@@ -1,8 +1,8 @@
-./c/lib/child.os
-./c/tests/test_child
+/c/lib/child.os
+/c/tests/test_child
 .sconsign
 .sconsign.dblite
-./m4/**
+/m4/**
 aclocal.m4
 compile
 config.guess
@@ -39,14 +39,18 @@ debian/*.log
 debian/*.debhelper
 debian/tmp
 debian/*.substvars
-./perl/blib
-./perl/pm_to_blib
+/perl/blib
+/perl/pm_to_blib
 subunit-*.tar.gz
 subunit-*.tar.gz.asc
 perl/Makefile.PL
-./.testrepository
+/.testrepository
 __pycache__
 perl/MYMETA.yml
-./build/
-./dist/
-./*.egg-info/
+/build/
+/dist/
+/*.egg-info/
+*.pyc
+*~
+.*.swp
+.*.swo