fix: address off-by-one bug

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---

Author: kgryte

lib/node_modules/@stdlib/ndarray/base/includes/lib/main.js

@@ -346,7 +346,7 @@ function includes( arrays ) {
 		xmmv = minmaxViewBufferIndex( shx, sx, x.offset );
 
 		// Determine whether we can ignore shape (and strides) and treat the ndarray as a linear one-dimensional strided array...
-		if ( len === ( xmmv[1]-xmmv[0]+1 ) || ( isCmplx && len*2 === ( xmmv[1]-xmmv[0]+1 ) ) ) { // eslint-disable-line max-len
+		if ( len === ( xmmv[1]-xmmv[0]+1 ) || ( isCmplx && len*2 === ( xmmv[1]-xmmv[0]+2 ) ) ) { // eslint-disable-line max-len
 			// Note: the above is equivalent to @stdlib/ndarray/base/assert/is-contiguous, but in-lined so we can retain computed values...
 			if ( iox === 1 ) {
 				ox = xmmv[ 0 ];