tests: fix glob pattern for dynamic timer alignment
The number of space characters varies depending on the number of digits of the
timer, making some tests fail on slow machines in an unintended way:
```diff
--- /build/mercurial-6.1/tests/test-merge-halt.t
+++ /build/mercurial-6.1/tests/test-merge-halt.t.err
@@ -210,6 +210,6 @@
merge halted after failed merge (see hg resolve)
[240]
$ hg shelve --list
- default (* ago) changes to: foo (glob)
+ default (11s ago) changes to: foo
$ hg unshelve --abort
unshelve of 'default' aborted
ERROR: test-merge-halt.t output changed
```
Differential Revision: https://phab.mercurial-scm.org/D12381
basic:
* neither file exists
creating
* neither file still exists
* empty file x created
creating
* file x changed size
creating
* nothing changed with either file
* file x changed inode
creating
* empty file y created
creating
* file y changed size
creating
* file y changed inode
creating
* both files changed inode
creating
fakeuncacheable:
* neither file exists
creating
* neither file still exists
creating
* empty file x created
creating
* file x changed size
creating
* nothing changed with either file
creating
* file x changed inode
creating
* empty file y created
creating
* file y changed size
creating
* file y changed inode
creating
* both files changed inode
creating
repository tip rolled back to revision -1 (undo commit)
working directory now based on revision -1
repository tip rolled back to revision -1 (undo commit)
working directory now based on revision -1
setbeforeget:
* neither file exists
string set externally
* file x created
creating
string from function
* string set externally again
string 2 set externally
* file y created
creating
string from function
antiambiguity: