[gdb/testsuite] Make gdb.pascal codespell-clean

Make gdb.pascal codespell-clean and add the dir to the pre-commit
configuration.

Approved-By: Tom Tromey <tom@tromey.com>
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index e2c140d..90d7519 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -70,7 +70,7 @@
     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|unittests|cli|testsuite/gdb.(ctf|dap|gdb|go|modula2|objc|opencl|perf|replay|reverse|rocm|server|stabs|testsuite|tui|xml)))/'
+      files: '^(gdbsupport|gdbserver|gdb/(tui|target|data-directory|po|system-gdbinit|mi|syscalls|arch|regformats|compile|python|guile|config|unittests|cli|testsuite/gdb.(ctf|dap|gdb|go|modula2|objc|opencl|pascal|perf|replay|reverse|rocm|server|stabs|testsuite|tui|xml)))/'
       args: [--config, gdb/contrib/setup.cfg]
   - repo: local
     hooks:
diff --git a/gdb/testsuite/gdb.pascal/integers.exp b/gdb/testsuite/gdb.pascal/integers.exp
index 5c878c5..c9974a1 100644
--- a/gdb/testsuite/gdb.pascal/integers.exp
+++ b/gdb/testsuite/gdb.pascal/integers.exp
@@ -59,7 +59,7 @@
 gdb_test "print j" " = 2"
 # k should be equal to 3
 gdb_test "print k" " = 3"
-# But l shoud still be zero
+# But l should still be zero
 if { $pascal_compiler_is_gpc } {
   setup_xfail *-*-*
 }