Update pg_upgrade comments for recent configpath fix.

diff --git a/contrib/pg_upgrade/option.c b/contrib/pg_upgrade/option.c
index 960fcdace7223a7082858fe8dd8509f0da119f17..94bce505cb6bda2473442ea1231bb439411ddabc 100644 (file)
--- a/contrib/pg_upgrade/option.c
+++ b/contrib/pg_upgrade/option.c
@@ -276,6 +276,7 @@ or\n"), old_cluster.port, new_cluster.port, os_info.user);
  *
  * Checks a directory option.
  *     dirpath           - the directory name supplied on the command line
+ *     configpath        - optional configuration directory
  *     envVarName        - the name of an environment variable to get if dirpath is NULL
  *     cmdLineOption - the command line option corresponds to this directory (-o, -O, -n, -N)
  *     description   - a description of this directory option
@@ -305,7 +306,8 @@ check_required_directory(char **dirpath, char **configpath,
        }
 
        /*
-        * Trim off any trailing path separators
+        * Trim off any trailing path separators because we construct paths
+        * by appending to this path.
         */
 #ifndef WIN32
        if ((*dirpath)[strlen(*dirpath) - 1] == '/')