fix comments

Author: ligurio

decimal/bcd.go

@@ -90,9 +90,7 @@ func EncodeStringToBCD(buf string) ([]byte, error) {
 		c = -1
 	}
 
-	// nibbleIdx is an index of a current nibble in a byte buffer. The first
-	// nibble should contain 0, if the decimal number has an even number of
-	// digits.
+	// nibbleIdx is an index of a current nibble in a byte buffer.
 	nibbleIdx := 0
 	scale := 0 // By default decimal number is integer.
 	var byteBuf []byte
@@ -146,6 +144,9 @@ func EncodeStringToBCD(buf string) ([]byte, error) {
 		lowByte := len(byteBuf) - 1
 		byteBuf[lowByte] = byteBuf[lowByte] | mapRuneToByteSign[sign]
 	}
+
+	// The first nibble should contain 0, if the decimal number has an even
+	// number of digits.
 	byteScale := byte(scale)
 	if c%2 == 0 {
 		byteScale = byteScale << 4