lineedit: reduce stack usage
netstat: reduce stack usage; fix handling of NULs in unix socket filenames

static.has_inode                                       1       -      -1
do_info                                              119     116      -3
deinit_S                                              60      51      -9
unix_do_one                                          578     451    -127
parse_and_put_prompt                                 966     825    -141
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(add/remove: 0/1 grow/shrink: 0/4 up/down: 0/-281)           Total: -281 bytes

2 files changed