Get the content of a patch as a single diff text.
@param out_ The git_buf to be filled in @param patch A git_patch representing changes to one file @return 0 on success, <0 on failure.
See Implementation
Get the content of a patch as a single diff text.
@param out_ The git_buf to be filled in @param patch A git_patch representing changes to one file @return 0 on success, <0 on failure.