9842 man page typos and spelling

@@ -32,12 +32,11 @@
        Example 1 Use getisax() to determine if the SSE2 instruction set is
        present.
 
 
        In the following example, if the message is written, the SSE2
-       instruction set is present and fully supportred by the operating
-       system.
+       instruction set is present and fully supported by the operating system.
 
 
          uint_t ui;
 
          (void) getisax(&ui, 1);