Allow to use quotes in nacl-manifest and nacl-irt commands.

gdb/nacl-manifest.c

Index: gdb/nacl-manifest.c
diff --git a/gdb/nacl-manifest.c b/gdb/nacl-manifest.c
index f5b00b1e2b43d069a6766ddf4b422887f6723114..5627d269d7804bdd59956902ad584392c6e0fc04 100644
--- a/gdb/nacl-manifest.c
+++ b/gdb/nacl-manifest.c
@@ -341,13 +341,23 @@ nacl_irt_command (char *args, int from_tty)
 {
   if (args)
     {
+      char **argv;
+      struct cleanup *old_chain;
       char *nacl_irt_filename;
-      nacl_irt_filename = tilde_expand (args);
+
+      argv = gdb_buildargv(args);
+      old_chain = make_cleanup_freeargv(argv);
+      if (*argv == NULL)
+	error (_("No IRT file name was specified"));
+
+      nacl_irt_filename = tilde_expand (*argv);
+      make_cleanup(xfree, nacl_irt_filename);
+
       symbol_file_add (nacl_irt_filename, from_tty ? SYMFILE_VERBOSE : 0,
 		       NULL, OBJF_USERLOADED);
-      xfree (nacl_irt_filename);
       /* Recalculate frames.  */
       reinit_frame_cache ();
+      do_cleanups(old_chain);
     }
 }
 
@@ -369,12 +379,18 @@ nacl_manifest_command (char *args, int from_tty)
 {
   if (args)
     {
-      char *manifest_filename;
+      char **argv;
       struct cleanup *old_chain;
+      char *manifest_filename;
       struct json_manifest_reader r = { 0 };
 
-      manifest_filename = tilde_expand (args);
-      old_chain = make_cleanup (xfree, manifest_filename);
+      argv = gdb_buildargv (args);
+      old_chain = make_cleanup_freeargv (argv);
+      if (*argv == NULL)
+	error (_("No manifest file name was specified"));
+
+      manifest_filename = tilde_expand (*argv);
+      make_cleanup (xfree, manifest_filename);
 
       r.file = fopen (manifest_filename, "r");
       if (!r.file)