simple_prompt() hangs because SIGINT handler was overridden

[za-arthur]

pg_repack overrides SIGINT handler:

pg_repack/bin/pgut/pgut.c

Line 1615 in 81f26d1

pqsignal(SIGINT, handle_sigint);

Because of this it isn't possible to interrupt password prompt with CTRL+C. You need to interrupt it you need to enter some or empty password.
If you do the following steps then pg_repack crashes:

• Run pg_repack
• Press CTRL+C when pg_repack waits for a password
• Enter any password

pg_repack -t repack_table -d postgres -U repack_user
Password:
FATAL: interrupted
[1]    36015 IOT instruction (core dumped)  pg_repack -t repack_table -d postgres -U repack_user