src(cpp): fix spelling in code comments (#8465)

Author: jbampton

src/jrd/IntlManager.cpp

@@ -184,27 +184,27 @@ const IntlManager::CharSetAliasDefinition IntlManager::defaultCharSetAliases[] =
 	{"ANSI", CS_ISO8859_1},
 	{"ISO88592", CS_ISO8859_2},
 	{"LATIN2", CS_ISO8859_2},
-	{"ISO-8859-2", CS_ISO8859_2},	// Prefered MIME name
+	{"ISO-8859-2", CS_ISO8859_2},	// Preferred MIME name
 	{"ISO88593", CS_ISO8859_3},
 	{"LATIN3", CS_ISO8859_3},
-	{"ISO-8859-3", CS_ISO8859_3},	// Prefered MIME name
+	{"ISO-8859-3", CS_ISO8859_3},	// Preferred MIME name
 	{"ISO88594", CS_ISO8859_4},
 	{"LATIN4", CS_ISO8859_4},
-	{"ISO-8859-4", CS_ISO8859_4},	// Prefered MIME name
+	{"ISO-8859-4", CS_ISO8859_4},	// Preferred MIME name
 	{"ISO88595", CS_ISO8859_5},
-	{"ISO-8859-5", CS_ISO8859_5},	// Prefered MIME name
+	{"ISO-8859-5", CS_ISO8859_5},	// Preferred MIME name
 	{"ISO88596", CS_ISO8859_6},
-	{"ISO-8859-6", CS_ISO8859_6},	// Prefered MIME name
+	{"ISO-8859-6", CS_ISO8859_6},	// Preferred MIME name
 	{"ISO88597", CS_ISO8859_7},
-	{"ISO-8859-7", CS_ISO8859_7},	// Prefered MIME name
+	{"ISO-8859-7", CS_ISO8859_7},	// Preferred MIME name
 	{"ISO88598", CS_ISO8859_8},
-	{"ISO-8859-8", CS_ISO8859_8},	// Prefered MIME name
+	{"ISO-8859-8", CS_ISO8859_8},	// Preferred MIME name
 	{"ISO88599", CS_ISO8859_9},
 	{"LATIN5", CS_ISO8859_9},
-	{"ISO-8859-9", CS_ISO8859_9},	// Prefered MIME name
+	{"ISO-8859-9", CS_ISO8859_9},	// Preferred MIME name
 	{"ISO885913", CS_ISO8859_13},
 	{"LATIN7", CS_ISO8859_13},
-	{"ISO-8859-13", CS_ISO8859_13},	// Prefered MIME name
+	{"ISO-8859-13", CS_ISO8859_13},	// Preferred MIME name
 	{"DOS_852", CS_DOS_852},
 	{"DOS_857", CS_DOS_857},
 	{"DOS_860", CS_DOS_860},

src/jrd/jrd.cpp

@@ -6897,7 +6897,7 @@ static void find_intl_charset(thread_db* tdbb, Jrd::Attachment* attachment, cons
  **************************************
  *
  * Functional description
- *	Attachment has declared it's prefered character set
+ *	Attachment has declared its preferred character set
  *	as part of LC_CTYPE, passed over with the attachment
  *	block.  Now let's resolve that to an internal subtype id.
  *

src/jrd/optimizer/Retrieval.cpp

@@ -724,7 +724,7 @@ bool Retrieval::betterInversion(const InversionCandidate* inv1,
 	{
 		if (inv1->dependencies > inv2->dependencies)
 		{
-			// Index used for a relationship must be always prefered to
+			// Index used for a relationship must be always preferred to
 			// the filtering ones, otherwise the nested loop join has
 			// no chances to be better than a sort merge.
 			// An alternative (simplified) condition might be:

src/yvalve/gds.cpp

@@ -511,7 +511,7 @@ void API_ROUTINE isc_decode_date(const ISC_QUAD* date, void* times_arg)
  * Functional description
  *	Convert from internal timestamp format to UNIX time structure.
  *
- *	Note: this API is historical - the prefered entrypoint is
+ *	Note: this API is historical - the preferred entrypoint is
  *	isc_decode_timestamp
  *
  **************************************/
@@ -602,7 +602,7 @@ void API_ROUTINE isc_encode_date(const void* times_arg, ISC_QUAD* date)
  * Functional description
  *	Convert from UNIX time structure to internal timestamp format.
  *
- *	Note: This API is historical -- the prefered entrypoint is
+ *	Note: This API is historical -- the preferred entrypoint is
  *	isc_encode_timestamp
  *
  **************************************/