https://bz.apache.org/SpamAssassin/show_bug.cgi?id=8492

            Bug ID: 8492
           Summary: vertical_whitespace increases peak memory use
           Product: Spamassassin
           Version: SVN Trunk (Latest Devel Version)
          Hardware: All
                OS: All
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Rules (Eval Tests)
          Assignee: [email protected]
          Reporter: [email protected]
  Target Milestone: Undefined

Created attachment 6193
  --> https://bz.apache.org/SpamAssassin/attachment.cgi?id=6193&action=edit
patch to reduce vertical_whitespace memory use

The vertical_whitespace eval, which is new in 4.0.3 and is used by the
__VERTICAL_SPACE_50 and __VERTICAL_SPACE_80 rules, increases peak memory
use for some messages by up to 39% in the spamassassin script and up to
76% in amavisd, compared with 4.0.2. It does not change peak memory use in
spamd or MIMEDefang.

The attached patch is a two line change. With it, peak memory use is within
a few MB of what it is in 4.0.2, and the eval's results are unchanged.

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