version.c: remove ruby_engine_name

* ruby.c (load_file_internal, ruby_process_options): share
  ruby_engine instead of literal strings.

* version.c (Init_version): remove internal `ruby_engine_name`,
  but set the VM program name in addition to the global constant.

* vm_backtrace.c (location_to_str, oldbt_init): use th eVM program
  name always.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52782 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 2 insertions, 2 deletions

diff --git a/vm_backtrace.c b/vm_backtrace.c
index 077ed5049f..4267b0dd71 100644
--- a/vm_backtrace.c
+++ b/vm_backtrace.c
@@ -333,7 +333,7 @@ location_to_str(rb_backtrace_location_t *loc)
 	}
 	else {
 	    rb_thread_t *th = GET_THREAD();
-	    file = th->vm->progname ? th->vm->progname : ruby_engine_name;
+	    file = th->vm->progname;
 	    lineno = INT2FIX(0);
 	}
 	name = rb_id2str(loc->body.cfunc.mid);
@@ -683,7 +683,7 @@ oldbt_init(void *ptr, size_t dmy)
     struct oldbt_arg *arg = (struct oldbt_arg *)ptr;
     rb_thread_t *th = GET_THREAD();
 
-    arg->filename = th->vm->progname ? th->vm->progname : ruby_engine_name;;
+    arg->filename = th->vm->progname;
     arg->lineno = 0;
 }