Get the number of lines in a hunk.
@param patch The git_patch object @param hunk_idx Index of the hunk @return Number of lines in hunk or git_error_code.GIT_ENOTFOUND if invalid hunk index
See Implementation
Get the number of lines in a hunk.
@param patch The git_patch object @param hunk_idx Index of the hunk @return Number of lines in hunk or git_error_code.GIT_ENOTFOUND if invalid hunk index