Use ui_file_as_string in gdb/printcmd.c

Yet another cleanup eliminated.

gdb/ChangeLog:
2016-11-08  Pedro Alves  <palves@redhat.com>

	* printcmd.c (eval_command): Use ui_file_as_string and
	std::string.

1 files changed, 2 insertions, 4 deletions

diff --git a/gdb/printcmd.c b/gdb/printcmd.c
index b70ed19f98..23de57cb21 100644
--- a/gdb/printcmd.c
+++ b/gdb/printcmd.c
@@ -2719,14 +2719,12 @@ eval_command (char *arg, int from_tty)
 {
   struct ui_file *ui_out = mem_fileopen ();
   struct cleanup *cleanups = make_cleanup_ui_file_delete (ui_out);
-  char *expanded;
 
   ui_printf (arg, ui_out);
 
-  expanded = ui_file_xstrdup (ui_out, NULL);
-  make_cleanup (xfree, expanded);
+  std::string expanded = ui_file_as_string (ui_out);
 
-  execute_command (expanded, from_tty);
+  execute_command (&expanded[0], from_tty);
 
   do_cleanups (cleanups);
 }