Summary:
There was a bad `printf` inserted by D31834/5f24af8765b3797fc192e670e0b2256a4f2e6505 (2.21.1.0) in joinpath.c. This change reverts that `printf`.

Original commit: 5f24af8765b3797fc192e670e0b2256a4f2e6505 / D41034

Test Plan: Jenkins: Compile only

Reviewers: mtakahara

Reviewed By: mtakahara

Subscribers: yql

Differential Revision: https://phorge.dev.yugabyte.com/D41046