Don't dump sql driver files that depend on system libraries.

.gitattributes

lib/modules/Sql.pmod/dsn.pike

lib/modules/Sql.pmod/dsn_result.pike

lib/modules/Sql.pmod/msql.pike

lib/modules/Sql.pmod/mysql.pike

lib/modules/Sql.pmod/mysql_result.pike

lib/modules/Sql.pmod/mysqls.pike

lib/modules/Sql.pmod/mysqls_result.pike

lib/modules/Sql.pmod/odbc.pike

lib/modules/Sql.pmod/odbc_result.pike

lib/modules/Sql.pmod/oracle.pike

lib/modules/Sql.pmod/postgres.pike

lib/modules/Sql.pmod/postgres_result.pike

lib/modules/Sql.pmod/sqlite.pike

lib/modules/Sql.pmod/sybase.pike