erofs-utils: lib: tar: Initialize the variable to avoid using garbage value

The value in variable 'e' is checked without initializing and can
wrongly signify end of tar 2 empty blocks.

Signed-off-by: Sandeep Dhavale <dhavale@google.com>
Link: https://lore.kernel.org/r/20230913221104.429825-8-dhavale@google.com
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
1 file changed