[RFA] Removes xfree/cleanup and C++fy in two exception functions.

[Xavier Roirand <roirand@adacore.com>]

This remove xstrprintf/xfree use and C++fy in two exception functions.

gdb/ChangeLog:

    * ada-lang.c (print_one_exception): Remove xstrprintf/xfree use.
    (print_mention_exception): C++fy.

Tested on x86_64-linux.
---
 gdb/ada-lang.c | 15 ++++++---------
 1 file changed, 6 insertions(+), 9 deletions(-)

diff --git a/gdb/ada-lang.c b/gdb/ada-lang.c
index dad2b17..03f3e56 100644
--- a/gdb/ada-lang.c
+++ b/gdb/ada-lang.c
@@ -12745,10 +12745,9 @@ print_one_exception (enum ada_exception_catchpoint_kind ex,
       case ada_catch_exception:
         if (c->excep_string != NULL)
           {
-            char *msg = xstrprintf (_("`%s' Ada exception"), c->excep_string);
-
-            uiout->field_string ("what", msg);
-            xfree (msg);
+	    uiout->field_fmt ("what",
+			      _("`%s' Ada exception"),
+			      c->excep_string);
           }
         else
           uiout->field_string ("what", "all Ada exceptions");
@@ -12789,11 +12788,9 @@ print_mention_exception (enum ada_exception_catchpoint_kind ex,
       case ada_catch_exception:
         if (c->excep_string != NULL)
 	  {
-	    char *info = xstrprintf (_("`%s' Ada exception"), c->excep_string);
-	    struct cleanup *old_chain = make_cleanup (xfree, info);
-
-	    uiout->text (info);
-	    do_cleanups (old_chain);
+	    std::string info = string_printf (_("`%s' Ada exception"),
+					      c->excep_string);
+	    uiout->text (info.c_str ());
 	  }
         else
           uiout->text (_("all Ada exceptions"));
-- 
2.7.4