DOC: CG 7.5 Adding Issues - clarify file types

Per discussion with P Holmes:
Use .png for 1-2 pages of output, .pdf for > 2
Caution about large files

diff --git a/Documentation/contributor/issues.itexi b/Documentation/contributor/issues.itexi
index 2d496e830e79f9ba489902a06199232c0880685c..ec34a77cdd124c4ff0ef71fe0b5b3dc6aa2a65a7 100644 (file)
--- a/Documentation/contributor/issues.itexi
+++ b/Documentation/contributor/issues.itexi
@@ -625,13 +625,25 @@ lilypond --png bug.ly
 @end example
 
 @item
-If the issue requires multi-page output, then generate a
-@file{bug.pdf} file with the normal:
+If the issue requires one or two pages of output, then generate a
+@file{bug.png} file with the normal:
 
 @example
 lilypond --png bug.ly
 @end example
 
+@item
+If the issue cannot be shown with less than three pages, then
+generate a @file{bug.pdf} file with:
+
+@example
+lilypond --pdf bug.ly
+@end example
+
+Note that this is likely to be extremely rare; most bugs should fit
+into the first two categories above.
+
+
 @end itemize
 
 @item