Avoid passing signed chars to <ctype.h> functions ... same old portability mistake as always.  Per buildfarm member pika.
Avoid passing signed chars to <ctype.h> functions ... same old
portability mistake as always.  Per buildfarm member pika.

arcivanov/postgres-xl,ashwinstar/gpdb,pavanvd/postgres-xl,adam8157/gpdb,jmcatamney/gpdb,Postgres-XL/Postgres-XL,jmcatamney/gpdb,greenplum-db/gpdb,lisakowen/gpdb,50wu/gpdb,jmcatamney/gpdb,postmind-net/postgres-xl,techdragon/Postgres-XL,yazun/postgres-xl,xinzweb/gpdb,tpostgres-projects/tPostgres,50wu/gpdb,Postgres-XL/Postgres-XL,greenplum-db/gpdb,tpostgres-projects/tPostgres,ovr/postgres-xl,postmind-net/postgres-xl,jmcatamney/gpdb,50wu/gpdb,xinzweb/gpdb,50wu/gpdb,ovr/postgres-xl,jmcatamney/gpdb,jmcatamney/gpdb,xinzweb/gpdb,kmjungersen/PostgresXL,zeroae/postgres-xl,ashwinstar/gpdb,zeroae/postgres-xl,snaga/postgres-xl,ashwinstar/gpdb,xinzweb/gpdb,oberstet/postgres-xl,Postgres-XL/Postgres-XL,postmind-net/postgres-xl,arcivanov/postgres-xl,postmind-net/postgres-xl,lisakowen/gpdb,xinzweb/gpdb,techdragon/Postgres-XL,adam8157/gpdb,adam8157/gpdb,lisakowen/gpdb,greenplum-db/gpdb,kmjungersen/PostgresXL,postmind-net/postgres-xl,adam8157/gpdb,greenplum-db/gpdb,kmjungersen/PostgresXL,lisakowen/gpdb,yazun/postgres-xl,arcivanov/postgres-xl,Postgres-XL/Postgres-XL,greenplum-db/gpdb,jmcatamney/gpdb,ashwinstar/gpdb,adam8157/gpdb,oberstet/postgres-xl,ovr/postgres-xl,lisakowen/gpdb,xinzweb/gpdb,ashwinstar/gpdb,yazun/postgres-xl,lisakowen/gpdb,pavanvd/postgres-xl,50wu/gpdb,ashwinstar/gpdb,50wu/gpdb,arcivanov/postgres-xl,xinzweb/gpdb,ovr/postgres-xl,snaga/postgres-xl,techdragon/Postgres-XL,lisakowen/gpdb,snaga/postgres-xl,jmcatamney/gpdb,snaga/postgres-xl,kmjungersen/PostgresXL,tpostgres-projects/tPostgres,pavanvd/postgres-xl,zeroae/postgres-xl,snaga/postgres-xl,greenplum-db/gpdb,pavanvd/postgres-xl,adam8157/gpdb,tpostgres-projects/tPostgres,techdragon/Postgres-XL,xinzweb/gpdb,yazun/postgres-xl,techdragon/Postgres-XL,adam8157/gpdb,lisakowen/gpdb,adam8157/gpdb,oberstet/postgres-xl,ashwinstar/gpdb,Postgres-XL/Postgres-XL,greenplum-db/gpdb,greenplum-db/gpdb,oberstet/postgres-xl,ovr/postgres-xl,tpostgres-projects/tPostgres,kmjungersen/PostgresXL,50wu/gpdb,pavanvd/postgres-xl,ashwinstar/gpdb,50wu/gpdb,yazun/postgres-xl,oberstet/postgres-xl,zeroae/postgres-xl,zeroae/postgres-xl,arcivanov/postgres-xl,arcivanov/postgres-xl