[Chapel Merge] Prevent spurious "used uninitialized" warnings.

Branch: refs/heads/master
Revision: bd1b75e
Author: gbtitus
Log Message:

Merge pull request #17669 from gbtitus/quick-ret-repair

Prevent spurious "used uninitialized" warnings.

(Reviewed by @ronawho.)

Initialize variables to prevent the compiler from warning that they
might be used uninitialized. (They're not, but it cannot determine
that.)

Modified Files:
M runtime/src/comm/ofi/comm-ofi.c

Compare: https://github.com/chapel-lang/chapel/compare/d44716bb5111...bd1b75ea4e58