Commit493490c

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Silence warning about uninitialized 'ret' variable on some compilers.

If the compiler doesn't notice that the switch-statement handles allpossible values of the enum, it might complain that 'ret' is being usedwithout initialization. Jeff Janes reported that on gcc 4.4.7.Discussion:https://www.postgresql.org/message-id/CAMkU=1x31RvP+cpooFbmc8K8nt-gNO8woGFhXcgQYYZ5ozYpFA@mail.gmail.com

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Original file line number	Diff line number	Diff line change
`@@ -1668,6 +1668,7 @@ connectDBStart(PGconn *conn)`
`1668`	`1668`	`snprintf(portstr,sizeof(portstr),"%d",thisport);`
`1669`	`1669`
`1670`	`1670`	`/* Use pg_getaddrinfo_all() to resolve the address */`
	`1671`	`+ret=1;`
`1671`	`1672`	`switch (ch->type)`
`1672`	`1673`	`{`
`1673`	`1674`	`caseCHT_HOST_NAME:`

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