Fix typos in comments.

Backpatch to all supported versions, where applicable, to make backpatching
of future fixes go more smoothly.

Josh Soref

Discussion: https://www.postgresql.org/message-id/CACZqfqCf+5qRztLPgmmosr-B0Ye4srWzzw_mo4c_8_B_mtjmJQ@mail.gmail.com

src/interfaces/ecpg/ecpglib/execute.c

@@ -2,7 +2,7 @@
 
 /*
  * The aim is to get a simpler interface to the database routines.
- * All the tidieous messing around with tuples is supposed to be hidden
+ * All the tedious messing around with tuples is supposed to be hidden
  * by this function.
  */
 /* Author: Linus Tolke

src/interfaces/ecpg/pgtypeslib/datetime.c

@@ -324,7 +324,7 @@ PGTYPESdate_fmt_asc(date dDate, const char *fmtstring, char *outbuf)
  *
  * function works as follows:
  *	 - first we analyze the parameters
- *	 - if this is a special case with no delimiters, add delimters
+ *	 - if this is a special case with no delimiters, add delimiters
  *	 - find the tokens. First we look for numerical values. If we have found
  *	   less than 3 tokens, we check for the months' names and thereafter for
  *	   the abbreviations of the months' names.

src/interfaces/ecpg/pgtypeslib/numeric.c

@@ -1368,11 +1368,11 @@ PGTYPESnumeric_cmp(numeric *var1, numeric *var2)
 {
 	/* use cmp_abs function to calculate the result */
 
-	/* both are positive: normal comparation with cmp_abs */
+	/* both are positive: normal comparison with cmp_abs */
 	if (var1->sign == NUMERIC_POS && var2->sign == NUMERIC_POS)
 		return cmp_abs(var1, var2);
 
-	/* both are negative: return the inverse of the normal comparation */
+	/* both are negative: return the inverse of the normal comparison */
 	if (var1->sign == NUMERIC_NEG && var2->sign == NUMERIC_NEG)
 	{
 		/*

src/interfaces/ecpg/preproc/ecpg.header

@@ -207,7 +207,7 @@ create_questionmarks(char *name, bool array)
 
 	/* In case we have a struct, we have to print as many "?" as there are attributes in the struct
 	 * An array is only allowed together with an element argument
-	 * This is essantially only used for inserts, but using a struct as input parameter is an error anywhere else
+	 * This is essentially only used for inserts, but using a struct as input parameter is an error anywhere else
 	 * so we don't have to worry here. */
 
 	if (p->type->type == ECPGt_struct || (array && p->type->type == ECPGt_array && p->type->u.element->type == ECPGt_struct))

src/interfaces/ecpg/preproc/ecpg.trailer

@@ -355,7 +355,7 @@ ECPGExecuteImmediateStmt: EXECUTE IMMEDIATE execstring
 			  $$ = $3;
 			};
 /*
- * variable decalartion outside exec sql declare block
+ * variable declaration outside exec sql declare block
  */
 ECPGVarDeclaration: single_vt_declaration;
 
@@ -707,7 +707,7 @@ struct_union_type_with_symbol: s_struct_union_symbol
 			free(forward_name);
 			forward_name = NULL;
 
-			/* This is essantially a typedef but needs the keyword struct/union as well.
+			/* This is essentially a typedef but needs the keyword struct/union as well.
 			 * So we create the typedef for each struct definition with symbol */
 			for (ptr = types; ptr != NULL; ptr = ptr->next)
 			{
@@ -1275,7 +1275,7 @@ descriptor_item:	SQL_CARDINALITY			{ $$ = ECPGd_cardinality; }
 		;
 
 /*
- * set/reset the automatic transaction mode, this needs a differnet handling
+ * set/reset the automatic transaction mode, this needs a different handling
  * as the other set commands
  */
 ECPGSetAutocommit:	SET SQL_AUTOCOMMIT '=' on_off	{ $$ = $4; }
@@ -1287,7 +1287,7 @@ on_off: ON				{ $$ = mm_strdup("on"); }
 		;
 
 /*
- * set the actual connection, this needs a differnet handling as the other
+ * set the actual connection, this needs a different handling as the other
  * set commands
  */
 ECPGSetConnection:	SET CONNECTION TO connection_object { $$ = $4; }

src/interfaces/ecpg/preproc/parse.pl

@@ -550,7 +550,7 @@ sub dump_fields
 			if ($len == 1)
 			{
 
-				# Straight assignement
+				# Straight assignment
 				$str = ' $$ = ' . $flds_new[0] . ';';
 				add_to_buffer('rules', $str);
 			}