[gdb/unittests] Ignore spellcheck warning in rsp-low-selftests.c

Ignore the following spellcheck warning:
...
$ codespell --config gdb/contrib/setup.cfg gdb/unittests
gdb/unittests/rsp-low-selftests.c:54: fo ==> of, for, to, do, go
...
and add gdb/unittests to the pre-commit codespell configuration.

Approved-By: Tom Tromey <tom@tromey.com>

2 files changed, 2 insertions, 2 deletions

diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 4a9f7ac..ca4650f 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -69,7 +69,7 @@ repos:
     rev: v2.4.1
     hooks:
     - id: codespell
-      files: '^(gdbsupport|gdbserver|gdb/(tui|target|data-directory|po|system-gdbinit|mi|syscalls|arch|regformats|compile|python|guile|config))/'
+      files: '^(gdbsupport|gdbserver|gdb/(tui|target|data-directory|po|system-gdbinit|mi|syscalls|arch|regformats|compile|python|guile|config|unittests))/'
       args: [--config, gdb/contrib/setup.cfg]
   - repo: local
     hooks:
diff --git a/gdb/unittests/rsp-low-selftests.c b/gdb/unittests/rsp-low-selftests.c
index df849c9..7a1b2de 100644
--- a/gdb/unittests/rsp-low-selftests.c
+++ b/gdb/unittests/rsp-low-selftests.c
@@ -51,7 +51,7 @@ static void test_hex2str ()
 {
   SELF_CHECK (hex2str ("666f6f") == "foo");
   SELF_CHECK (hex2str ("666f6fa") == "foo");
-  SELF_CHECK (hex2str ("666f6f", 2) == "fo");
+  SELF_CHECK (hex2str ("666f6f", 2) == "fo"); /* codespell:ignore */
   SELF_CHECK (hex2str ("666", 2) == "f");
   SELF_CHECK (hex2str ("666", 6) == "f");
   SELF_CHECK (hex2str ("") == "");