[PATCH 4/4] Ensure that help text fits in 80 columns

[Tom Tromey <tromey@adacore.com>]

This patch adds a new unit test that ensures that all help text wraps
at 80 columns.
---
 gdb/unittests/command-def-selftests.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/gdb/unittests/command-def-selftests.c b/gdb/unittests/command-def-selftests.c
index 6a9b194e680..a87ce2c5603 100644
--- a/gdb/unittests/command-def-selftests.c
+++ b/gdb/unittests/command-def-selftests.c
@@ -78,6 +78,7 @@ check_doc (struct cmd_list_element *commandlist, const char *prefix)
 	  (prefix, c->name,
 	   "has superfluous trailing whitespace");
 
+      const char *prev_start = c->doc;
       for (const char *nl = strchr (c->doc, '\n');
 	   nl != nullptr;
 	   nl = strchr (nl + 1, '\n'))
@@ -91,6 +92,10 @@ check_doc (struct cmd_list_element *commandlist, const char *prefix)
 		broken_doc_invariant (prefix, c->name,
 				      "has whitespace before a newline");
 	    }
+
+	  if (nl - prev_start > cli_help_line_length)
+	    broken_doc_invariant (prefix, c->name, "has over-long line");
+	  prev_start = nl + 1;
 	}
 
       /* Check if this command has subcommands and is not an

-- 
2.44.0