tests: replace truncate(1) with inline python
MSYS doesn't have truncate(1) installed by default, and FreeBSD looked unhappy
with the arguments provided.
Differential Revision: https://phab.mercurial-scm.org/D8147
--- a/tests/test-tags.t Mon Feb 24 16:59:35 2020 -0500
+++ b/tests/test-tags.t Mon Feb 24 17:43:34 2020 -0500
@@ -374,7 +374,11 @@
On junk data + missing cache entries, hg also overwrites the junk.
$ rm -f .hg/cache/tags2-visible
- $ truncate .hg/cache/hgtagsfnodes1 -s -10
+ >>> import os
+ >>> with open(".hg/cache/hgtagsfnodes1", "ab+") as fp:
+ ... fp.seek(-10, os.SEEK_END) and None
+ ... fp.truncate() and None
+
$ hg debugtagscache | tail -2
4 0c192d7d5e6b78a714de54a2e9627952a877e25a 0c04f2a8af31de17fab7422878ee5a2dadbc943d
5 8dbfe60eff306a54259cfe007db9e330e7ecf866 missing/invalid