doc: remove extra blank line at the top of SGML files
Backpatch-through: 9.5
Branch------REL_11_STABLE
Details-------https://git.postgresql.org/pg/commitdiff/a4def04df5fa1c01e38f6dd8941a07c60da01068
Modified Files--------------doc/src/sgml/ref/copy.sgml | 1 -1 file changed, 1 deletion(-)
