ERC: header-line-format nil

[David Reitter]

When `erc-header-line-format' is set to nil, the header line should  
not be set in order to avoid interfering with minor modes that may use  
it (e.g., tabbar).  Is it OK to apply the patch below?




*** erc.el      28 Jul 2008 23:15:49 +0100      1.52
--- erc.el      17 Aug 2008 19:44:33 +0100      
***************
*** 6085,6092 ****
        (let ((header (if erc-header-line-format
                          (format-spec erc-header-line-format spec)
                        nil)))
!         (cond ((null header)
!                (setq header-line-format nil))
                (erc-header-line-uses-help-echo-p
                 (let ((help-echo (with-temp-buffer
                                    (insert header)
--- 6085,6091 ----
        (let ((header (if erc-header-line-format
                          (format-spec erc-header-line-format spec)
                        nil)))
!         (cond ((null header))
                (erc-header-line-uses-help-echo-p
                 (let ((help-echo (with-temp-buffer
                                    (insert header)

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