Fix example and descriptions

Author: kgryte

lib/node_modules/@stdlib/string/repeat/README.md

@@ -56,17 +56,12 @@ str = repeat( 'beep', 0 );
 <!-- eslint no-undef: "error" -->
 
 ```javascript
-var round = require( '@stdlib/math/base/special/round' );
-var randu = require( '@stdlib/random/base/randu' );
+var discreteUniform = require( '@stdlib/random/base/discrete-uniform' );
 var repeat = require( '@stdlib/string/repeat' );
 
-var str = 'beep';
-var n;
 var i;
-
 for ( i = 0; i < 100; i++ ) {
-    n = round( randu()*3.0 );
-    console.log( repeat( str, n ) );
+    console.log( repeat( 'beep', discreteUniform( 0, 3 ) ) );
 }
 ```
 

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

@@ -51,7 +51,7 @@ tape( 'the main export is a wrapper around a builtin if an environment supports
 	t.end();
 });
 
-tape( 'if the first argument is not a string primitive, the function will throw an error', function test( t ) {
+tape( 'if the first argument is not a string, the function will throw an error', function test( t ) {
 	var values;
 	var i;
 

lib/node_modules/@stdlib/string/repeat/test/test.main.js

@@ -40,7 +40,7 @@ tape( 'main export is a function', opts, function test( t ) {
 	t.end();
 });
 
-tape( 'if the first argument is not a string primitive, the function will throw an error', opts, function test( t ) {
+tape( 'if the first argument is not a string, the function will throw an error', opts, function test( t ) {
 	var values;
 	var i;
 

lib/node_modules/@stdlib/string/repeat/test/test.polyfill.js

@@ -32,7 +32,7 @@ tape( 'main export is a function', function test( t ) {
 	t.end();
 });
 
-tape( 'if the first argument is not a string primitive, the function will throw an error', function test( t ) {
+tape( 'if the first argument is not a string, the function will throw an error', function test( t ) {
 	var values;
 	var i;