improve .latexmkrc

- more lualatex comments
- group extensions together

.latexmkrc

@@ -1,5 +1,5 @@
 #`-file-line-error` is similar to `--interaction nonstopmode`, but shows the concrete line number
-#Remove it, it you want pdflatex to stop on errors
+#Remove it, it you want lualatex to stop on errors
 $pdflatex = 'lualatex -shell-escape -file-line-error --synctex=-1 %O %S';
 
 #Use SumatraPDF instead of the default PDF viewer
@@ -8,12 +8,9 @@ $pdf_previewer = 'start "C:\Program Files\SumatraPDF\SumatraPDF.exe"';
 #SumatraPDF updates automatically
 $preview_mode = 0;
 
-#automatically call pdflatex (instead of latex)
+#automatically call lualatex/pdflatex (instead of latex)
 $pdf_mode = 1;
 
-#remove more files than in the default configuration
-@generated_exts = qw(acn acr alg aux code ist fls glg glo gls glsdefs idx ind lof lot out thm toc tpt wrt);
-
 add_cus_dep('glo', 'gls', 0, 'run_makeglossaries');
 add_cus_dep('acn', 'acr', 0, 'run_makeglossaries');
 
@@ -26,4 +23,6 @@ sub run_makeglossaries {
   };
 }
 
+#remove more files than in the default configuration
+@generated_exts = qw(acn acr alg aux code ist fls glg glo gls glsdefs idx ind lof lot out thm toc tpt wrt);
 $clean_ext .= ' %R.ist %R.xdy';