pgsql: Don't uselessly escape a string that doesn't need escaping

Don't uselessly escape a string that doesn't need escaping

Per gripe from Ian Barwick

Co-authored-by: Ian Barwick 
Discussion: https://postgr.es/m/CABvVfJWNnNKb8cHsTLhkTsvL1+G6BVcV+57+w1JZ61p8YGPdWQ@mail.gmail.com

Branch
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REL_11_STABLE

Details
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https://git.postgresql.org/pg/commitdiff/66abcce55f12641b0a5fd03be61c17362038c659

Modified Files
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src/bin/pg_basebackup/pg_basebackup.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)