[kde-freebsd] [Bug 209561] editors/kate: Fix build with libc++ 3.8.0

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=209561

            Bug ID: 209561
           Summary: editors/kate: Fix build with libc++ 3.8.0
           Product: Ports & Packages
           Version: Latest
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Some People
          Priority: ---
         Component: Individual Port(s)
          Assignee: kde at FreeBSD.org
          Reporter: dim at FreeBSD.org
             Flags: maintainer-feedback?(kde at FreeBSD.org)
          Assignee: kde at FreeBSD.org

Created attachment 170375
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=170375&action=edit
Fix type for abs() call in editors/kate

During the exp-run in bug 208158, it was found that editors/kate gives errors
with libc++ 3.8.0 [1]:

/wrkdirs/usr/ports/editors/kate/work/kate-4.14.3/part/view/kateviewhelpers.cpp:1706:24:
error: call to 'abs' is ambiguous
            int diff = abs(realLine - currentLine);
                       ^~~

This is because 'realLine' is int, and 'currentLine' is unsigned, making the
whole expression unsigned.  Make 'currentLine' int to fix the problem.

[1]
http://package18.nyi.freebsd.org/data/headamd64PR208158-default/2016-05-01_10h29m48s/logs/errors/kate-4.14.3_1.log

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