Warnings reported by Infer

[zpxue]

1. bug_type: UNINITIALIZED_VALUE, qualifier: The value read from has_real_points was never initialized., severity: ERROR, line: 2162, column: 5, procedure: convert_to_seek_table_template, procedure_start_line: 2128, file: flac/src/flac/encode.c
2. bug_type: UNINITIALIZED_VALUE, qualifier: The value read from has_real_points was never initialized., severity: ERROR, line: 2167, column: 6, procedure: convert_to_seek_table_template, procedure_start_line: 2128, file: flac/src/flac/encode.c
3. bug_type: DEAD_STORE, qualifier: The value written to &ok (type int) is never used., severity: ERROR, line: 38, column: 2, procedure: do_shorthand_operation__picture, procedure_start_line: 36, file: flac/src/metaflac/operations_shorthand_picture.c
4. bug_type: DEAD_STORE, qualifier: The value written to &ok (type int) is never used., severity: ERROR, line: 38, column: 2, procedure: do_shorthand_operation__cuesheet, procedure_start_line: 36, file: flac/src/metaflac/operations_shorthand_cuesheet.c
5. bug_type: DEAD_STORE, qualifier: The value written to &ok (type int) is never used., severity: ERROR, line: 35, column: 2, procedure: do_shorthand_operation__add_seekpoints, procedure_start_line: 33, file: flac/src/metaflac/operations_shorthand_seektable.c