Fix typos in comments

A collection typo fixes that were lying around.

[ci skip]

gpMgmt/bin/gppylib/commands/gp.py

@@ -1385,7 +1385,7 @@ def start_standbymaster(host, datadir, port, dbid, ncontents, era=None,
         return False
 
     # Wait for the standby to start recovery.  Ideally this means the
-    # standby connection is recoginized by the primary, but locally this
+    # standby connection is recognized by the primary, but locally in this
     # function it is better to work with only standby.  If recovery has
     # started, this means now postmaster is responsive to signals, which
     # allows shutdown etc.  If we exit earlier, there is a big chance
@@ -1424,7 +1424,7 @@ def get_pid_from_remotehost(host, datadir):
 
 def is_pid_postmaster(datadir, pid, remoteHost=None):
     """
-    This function returns true on any uncertancy: if it cannot execute pgrep, pwdx or just connect to the standby host
+    This function returns true on any uncertainty: if it cannot execute pgrep, pwdx or just connect to the standby host
     it will return true
     """
     def validate_command (commandName, datadir, ctxt, remoteHost):

gpMgmt/bin/gppylib/gphostcache.py

@@ -169,7 +169,7 @@ class GpHostCache:
         # Go through the gparray and build list of interface and hostname that
         #  will be used to build the GpInterfaceToHostNameCache
         #
-        # As Greeenplum 4.0 we have both interface and hostname information in
+        # As Greenplum 4.0 we have both interface and hostname information in
         # the catalog, so the gparray should be able to supply all of the
         # information.
         #

src/backend/cdb/partitionselection.c

@@ -711,7 +711,7 @@ static_part_selection(PartitionSelector *ps)
  *
  * This function, and change_varattnos_of_a_varno below, used to be in
  * tablecmds.c, but were removed in upstream commit 188a0a00. But we still need
- * this for dynamic partition selection in GDPB, so copied them here.
+ * this for dynamic partition selection in GPDB, so copied them here.
  */
 AttrNumber *
 varattnos_map(TupleDesc old, TupleDesc new)