Commitfd6dbc2

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Fix join_path_components() to not add a leading slash when joining to an

initial null string.Per report from Robert Haas in testing psql \ir.

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Lines changed: 2 additions & 1 deletion

Original file line number	Diff line number	Diff line change
`@@ -212,7 +212,8 @@ join_path_components(char *ret_path,`
`212`	`212`	`}`
`213`	`213`	`if (*tail)`
`214`	`214`	`snprintf(ret_path+strlen(ret_path),MAXPGPATH-strlen(ret_path),`
`215`		`-"/%s",tail);`
	`215`	`+/* only add slash if there is something already in head */`
	`216`	`+"%s%s",head[0] ?"/" :"",tail);`
`216`	`217`	`}`
`217`	`218`
`218`	`219`

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