lib: use american spelling as per style guide

PR-URL: nodejs#18226
Reviewed-By: Gireesh Punathil <[email protected]>
Reviewed-By: Colin Ihrig <[email protected]>
Reviewed-By: James M Snell <[email protected]>
Reviewed-By: Benjamin Gruenbaum <[email protected]>
Reviewed-By: Jon Moss <[email protected]>
Reviewed-By: Ruben Bridgewater <[email protected]>

Author: sreepurnajasti

lib/buffer.js

@@ -1229,7 +1229,7 @@ Buffer.prototype.readInt32BE = function readInt32BE(offset, noAssert) {
 //
 // An all-bits-one exponent is either a positive or negative infinity, if
 // the fraction is zero, or NaN when it is non-zero.  The standard allows
-// both quiet and signalling NaNs but since NaN is a canonical value in
+// both quiet and signaling NaNs but since NaN is a canonical value in
 // JavaScript, we cannot (and do not) distinguish between the two.
 //
 // Other exponents are regular numbers and are computed by subtracting the bias