Here’s a patch to add two vaguely related features:
If $SuppressInlineTextFiles is set to a true value, then
attached,
named text files are prevented from being displayed in-line in
a
ticket display. Although this is usually what users expect, it
is
not the
default.
Set($SuppressInlineTextFiles, undef);
If $DontSearchFileAttachments is set to a true value, then
named
attached files are not searched. Although this is usually
what
users expect, it is not the
default.
Set($DontSearchFileAttachments, undef);
The attached patch is to 3.6.0 and affects:
etc/RT_Config.pm.in
html/Ticket/Elements/LoadTextAttachments
html/Ticket/Elements/ShowTransactionAttachments
lib/RT/Tickets_Overlay.pm
I will admit that I need a little help with my change to
LoadTextAttachments – it doesn’t seem to have any practical effect
unless the ShowTransactionAttachments change is also applied. But it
seems harmless.
I’m submitting these because I really like these patches, and I’m
getting tired of re-applying them when I upgrade RT 
-Kevin Murphy
kevins.rt.patch (3.2 KB)