test: remove excess whitespace in descriptions

lib/node_modules/@stdlib/array/fixed-endian-factory/test/test.includes.js

@@ -157,7 +157,7 @@ tape( 'the method returns `false` if a search element is not found', function te
 	t.end();
 });
 
-tape( 'the method returns `true`  if an element is found', function test( t ) {
+tape( 'the method returns `true` if an element is found', function test( t ) {
 	var ctor;
 	var arr;
 	var v;

lib/node_modules/@stdlib/string/base/format-interpolate/test/test.js

@@ -1018,7 +1018,7 @@
 	t.end();
 });
 
-tape( 'the function returns a formatted string (`b` specifier, minimum width,  zero-padded)', function test( t ) {
+tape( 'the function returns a formatted string (`b` specifier, minimum width, zero-padded)', function test( t ) {
 	var expected;
 	var tokens;
 	var actual;
@@ -1243,7 +1243,7 @@
 	str = 'beep %e';
 	tokens = formatTokenize( str );
 	actual = formatInterpolate( tokens, -5 );
 	expected = 'beep -5.000000e+00';
 	t.strictEqual( actual, expected, 'returns expected output' );
 
 	str = '%e %e baz';

lib/node_modules/@stdlib/string/format/test/test.js

@@ -797,7 +797,7 @@ tape( 'the function returns a formatted string (`b` specifier, minimum width, le
 	t.end();
 });
 
-tape( 'the function returns a formatted string (`b` specifier, minimum width,  zero-padded)', function test( t ) {
+tape( 'the function returns a formatted string (`b` specifier, minimum width, zero-padded)', function test( t ) {
 	var expected;
 	var actual;
 	var str;