Change the filename like make variable

for consistency

common.mk

@@ -227,9 +227,9 @@ MJIT_WITHOUT_TABS=true
 # Other `-Dxxx`s preceding `-DMJIT_HEADER` will be removed in transform_mjit_header.rb.
 # So `-DMJIT_HEADER` should be passed first when rb_mjit_header.h is generated.
 $(TIMESTAMPDIR)/$(MJIT_HEADER:.h=)$(MJIT_HEADER_SUFFIX).time: probes.h vm.$(OBJEXT) \
-		$(TIMESTAMPDIR)/$(arch)/.time $(srcdir)/tool/run_without_tabs.rb
+		$(TIMESTAMPDIR)/$(arch)/.time $(srcdir)/tool/mjit_without_tabs.rb
 	$(ECHO) building $(@F:.time=.h)
-	$(Q) $(BASERUBY) $(srcdir)/tool/run_without_tabs.rb "$(MJIT_WITHOUT_TABS)" \
+	$(Q) $(BASERUBY) $(srcdir)/tool/mjit_without_tabs.rb "$(MJIT_WITHOUT_TABS)" \
 		$(CPP) -DMJIT_HEADER $(MJIT_HEADER_FLAGS) $(CFLAGS) $(XCFLAGS) $(CPPFLAGS) $(srcdir)/vm.c $(CPPOUTFLAG)$(@F:.time=.h).new
 	$(Q) $(IFCHANGE) "--timestamp=$@" $(@F:.time=.h) $(@F:.time=.h).new
 

tool/mjit_without_tabs.rb

@@ -32,14 +32,14 @@ flag, *command = ARGV
 targets.each do |target|
   next if flag != 'true'
   unless File.writable?(target)
-    puts "tool/run_without_tabs.rb: Skipping #{target.dump} as it's not writable."
+    puts "tool/mjit_without_tabs.rb: Skipping #{target.dump} as it's not writable."
     next
   end
   source = File.read(target)
   begin
     expanded = source.gsub(/^\t+/) { |tab| ' ' * 8 * tab.length }
   rescue ArgumentError # invalid byte sequence in UTF-8 (Travis, RubyCI)
-    puts "tool/run_without_tabs.rb: Skipping #{target.dump} as the encoding is #{source.encoding}."
+    puts "tool/mjit_without_tabs.rb: Skipping #{target.dump} as the encoding is #{source.encoding}."
     next
   end
 
@@ -47,7 +47,7 @@ targets.each do |target|
   mtimes[target] = File.mtime(target)
 
   if sources[target] == expanded
-    puts "#{target.dump} has no hard tab indentation. This should be ignored in tool/run_without_tabs.rb."
+    puts "#{target.dump} has no hard tab indentation. This should be ignored in tool/mjit_without_tabs.rb."
   end
   File.write(target, expanded)
   FileUtils.touch(target, mtime: mtimes[target])