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#### Description <!-- Describe your changes in detail --> This PR adds a new parameter `prefix` to the function and its docs. It allows the message to be fixed with a prefix string.

Also fixes some leak issues. You can view, comment on, or merge this pull request online at:

https://github.com/kamailio/kamailio/pull/3758

-- Commit Summary --

* file_out: Free allocated memory * file_out: Add a prefix paramater

-- File Changes --

M src/modules/file_out/doc/file_out_admin.xml (13) M src/modules/file_out/file_out.c (32) M src/modules/file_out/types.c (9) M src/modules/file_out/types.h (1)

-- Patch Links --

https://github.com/kamailio/kamailio/pull/3758.patch https://github.com/kamailio/kamailio/pull/3758.diff