[gdb/testsuite] Fix ls_host return in index-cache.exp
When adding a debug print here in index-cache.exp:
...
proc_with_prefix test_cache_disabled { cache_dir } {
lassign [ls_host $cache_dir] ret files_before
+ puts "before: '$files_before'"
+ exit
...
we have:
...
files_before: ''
...
When further adding:
...
proc_with_prefix test_cache_disabled { cache_dir } {
+ exec touch $cache_dir/foo.1 $cache_dir/foo.2 $cache_dir/foo.3
...
we have:
...
files_before: 'foo.1'
...
while we're expecting file_before to contain foo.[123].
Fix this by making the return statement in ls_host return a list rather than a
string (in accordance with the ls_host documentation), after which we have:
...
files_before: 'foo.1 foo.2 foo.3'
...
Tested on x86_64-linux.
gdb/testsuite/ChangeLog:
2019-05-07 Tom de Vries <tdevries@suse.de>
* gdb.base/index-cache.exp (ls_host): Fix return statement.
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