Fix various typos and spelling mistakes in code comments

Author: Justin Pryzby
Discussion: https://postgr.es/m/20220411020336.GB26620@telsasoft.com

src/backend/utils/adt/genfile.c

@@ -59,9 +59,9 @@ convert_and_check_filename(text *arg)
 	canonicalize_path(filename);	/* filename can change length here */
 
 	/*
-	 * Roles with privleges of the 'pg_read_server_files' role are allowed to access
-	 * any files on the server as the PG user, so no need to do any further checks
-	 * here.
+	 * Roles with privileges of the 'pg_read_server_files' role are allowed to
+	 * access any files on the server as the PG user, so no need to do any
+	 * further checks here.
 	 */
 	if (has_privs_of_role(GetUserId(), ROLE_PG_READ_SERVER_FILES))
 		return filename;

src/backend/utils/adt/geo_ops.c

@@ -3878,7 +3878,7 @@ lseg_inside_poly(Point *a, Point *b, POLYGON *poly, int start)
 		Point		p;
 
 		/*
-		 * if X-intersection wasn't found  then check central point of tested
+		 * if X-intersection wasn't found, then check central point of tested
 		 * segment. In opposite case we already check all subsegments
 		 */
 		p.x = float8_div(float8_pl(t.p[0].x, t.p[1].x), 2.0);

src/backend/utils/adt/pg_locale.c

@@ -991,7 +991,7 @@ search_locale_enum(LPWSTR pStr, DWORD dwFlags, LPARAM lparam)
 						test_locale, LOCALE_NAME_MAX_LENGTH))
 	{
 		/*
-		 * If the enumerated locale does not have a hyphen ("en") OR  the
+		 * If the enumerated locale does not have a hyphen ("en") OR the
 		 * lc_message input does not have an underscore ("English"), we only
 		 * need to compare the <Language> tags.
 		 */

src/backend/utils/adt/tsquery.c

@@ -261,7 +261,7 @@ parse_or_operator(TSQueryParserState pstate)
 		/*
 		 * Suppose, we found an operand, but could be a not correct operand.
 		 * So we still treat OR literal as operation with possibly incorrect
-		 * operand and  will not search it as lexeme
+		 * operand and will not search it as lexeme
 		 */
 		if (!t_isspace(ptr))
 			break;

src/backend/utils/cache/relmapper.c

@@ -1044,7 +1044,7 @@ perform_relmap_update(bool shared, const RelMapFile *updates)
 					  (shared ? "global" : DatabasePath));
 
 	/*
-	 * We succesfully wrote the updated file, so it's now safe to rely on the
+	 * We successfully wrote the updated file, so it's now safe to rely on the
 	 * new values in this process, too.
 	 */
 	if (shared)
@@ -1093,7 +1093,7 @@ relmap_redo(XLogReaderState *record)
 		 * an existing database as we do for creating a new database. In
 		 * the latter case, taking the relmap log and sending sinval messages
 		 * is unnecessary, but harmless. If we wanted to avoid it, we could
-		 * add a flag to the WAL record to indicate which opration is being
+		 * add a flag to the WAL record to indicate which operation is being
 		 * performed.
 		 */
 		LWLockAcquire(RelationMappingLock, LW_EXCLUSIVE);

src/backend/utils/error/csvlog.c

@@ -4,7 +4,7 @@
  *	  CSV logging
  *
  * Portions Copyright (c) 1996-2022, PostgreSQL Global Development Group
- * Portions Copyright (c) 1994, Regents of the University of Californi
+ * Portions Copyright (c) 1994, Regents of the University of California
  *
  *
  * IDENTIFICATION

src/backend/utils/error/elog.c

@@ -2269,7 +2269,7 @@ write_console(const char *line, int len)
 	/*
 	 * Conversion on non-win32 platforms is not implemented yet. It requires
 	 * non-throw version of pg_do_encoding_conversion(), that converts
-	 * unconvertable characters to '?' without errors.
+	 * unconvertible characters to '?' without errors.
 	 *
 	 * XXX: We have a no-throw version now. It doesn't convert to '?' though.
 	 */

src/backend/utils/error/jsonlog.c

@@ -4,7 +4,7 @@
  *	  JSON logging
  *
  * Portions Copyright (c) 1996-2022, PostgreSQL Global Development Group
- * Portions Copyright (c) 1994, Regents of the University of Californi
+ * Portions Copyright (c) 1994, Regents of the University of California
  *
  *
  * IDENTIFICATION

src/backend/utils/fmgr/funcapi.c

@@ -69,7 +69,7 @@ static TypeFuncClass get_type_func_class(Oid typid, Oid *base_typeid);
  * descriptor coming from expectedDesc, which is the tuple descriptor
  * expected by the caller.  SRF_SINGLE_BLESS can be set to complete the
  * information associated to the tuple descriptor, which is necessary
- * in some cases  where the tuple descriptor comes from a transient
+ * in some cases where the tuple descriptor comes from a transient
  * RECORD datatype.
  */
 void

src/backend/utils/mmgr/generation.c

@@ -27,7 +27,7 @@
  *	context's 'freeblock' field.  If the freeblock field is already occupied
  *	by another free block we simply return the newly empty block to malloc.
  *
- *	This approach to free blocks requires fewer malloc/free calls for truely
+ *	This approach to free blocks requires fewer malloc/free calls for truly
  *	first allocated, first free'd allocation patterns.
  *
  *-------------------------------------------------------------------------