Fix segfault when read_file encounters an error opening the file

git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@410 35c25a1d-7b9e-4130-9fde-d3aeb78583b8

ChangeLog

@@ -14,6 +14,9 @@ General
 	- Fix magic line not getting created when (you guessed it)
 	  uncutting marked text at filebot (Ryan Krebs).
 - files.c:
+  read_file()
+	- If we encounter an error and insert is not set, run new_file().
+	  (bug discovered by Ben Roberts).
   write_file()
 	- Change open call flags, basically copy joe's way of doing it so
 	  a more recent version will actually be included in (un)stable.

files.c

@@ -227,6 +227,8 @@ int open_file(char *filename, int insert, int quiet)
     } else if ((fd = open(filename, O_RDONLY)) == -1) {
 	if (!quiet)
 	    statusbar("%s: %s", strerror(errno), filename);
+	if (!insert)
+	    new_file();
 	return -1;
     } else {			/* File is A-OK */
 	if (S_ISDIR(fileinfo.st_mode) || S_ISCHR(fileinfo.st_mode) ||