Update bson/src/main/org/bson/io/ByteBufferBsonInput.java

Co-authored-by: Valentin Kovalenko <valentin.male.kovalenko@gmail.com>

Author: vbabanin

bson/src/main/org/bson/io/ByteBufferBsonInput.java

@@ -215,8 +215,8 @@ private int computeCStringLength(final int prevPos) {
                mask:
                00000000 00000000 11111111 00000000 00000001 00000001 00000000 00000111
 
-               ANDing mask with 0x8080808080808080 isolates the most significant bit (0x80) in positions where
-               the original byte was 0x00, thereby setting the most significant bit to 1 only at the 0x00 byte position.
+               ANDing mask with 0x8080808080808080 isolates the most significant bit in each byte where
+               the original byte was 0x00, thereby setting the most significant bit to 1 in each 0x00 original byte.
 
                result:
                00000000 00000000 10000000 00000000 00000000 00000000 00000000 00000000