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Austin Seipp authored
A ource file which was accidently passed as parameter into `:ctags` or `:etags` can be overwritten by tag data. This patch updates documentation to avoid confusion in commands usage and prevents `collateAndWriteTags` from modifying existing source files. Reviewed By: thomie, bgamari, austin Differential Revision: https://phabricator.haskell.org/D1471 GHC Trac Issues: #10989
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