postgresql: fix building

[ligurio]

The patch fixes broken patching:

../add_fuzzers.diff:66: space before tab in indent.
 	//EmitErrorReport();
error: patch failed: src/backend/utils/error/elog.c:540
error: src/backend/utils/error/elog.c: patch does not apply

[github-actions]

ligurio is a new contributor to projects/postgresql. The PR must be approved by known contributors before it can be merged. The past contributors are: hunsche, arthurscchan, anfedotoff, inferno-chromium, yooyoo9, sfrost

[ligurio]

<snipped>
-lpgport -lz -lreadline -lm  -o dbfuzz \
&& PATH="/src/postgres/bld/tmp_install/usr/local/pgsql/bin:$PATH" LD_LIBRARY_PATH="/src/postgres/bld/tmp_install/usr/local/pgsql/lib" ./dbfuzz
psql: error: connection to server on socket "/tmp/pg_dbfuzz-OfH2d8/.s.PGSQL.5432" failed: No such file or directory
	Is the server running locally and accepting connections on that socket?
pg_ctl: directory "/src/postgres/bld/src/backend/fuzzer/temp/data" does not exist
+ chown -R root .
+ mv temp/data .
mv: cannot stat 'temp/data': No such file or directory
ERROR:__main__:Building fuzzers failed.
Building project postgresql
Running command: python /home/runner/work/oss-fuzz/oss-fuzz/infra/helper.py build_fuzzers postgresql --engine libfuzzer --sanitizer coverage --architecture x86_64