Fix spelling in comments

Should be non-functional, except for some error message strings.

modules/libcom/test/epicsAtomicPerform.cpp

@@ -236,7 +236,7 @@ private:
 // tests the time it takes to perform a call to an external
 // function and also increment an integer word. The
 // epicsInterruptIsInterruptContext function is an
-// out-of-line function implemented in a sharable library
+// out-of-line function implemented in a shareable library
 // so hopefully it wont be optimized away.
 template < class T >
 inline void OrdinaryIncr < T > :: run ()
@@ -561,7 +561,7 @@ MAIN ( epicsAtomicPerform )
     // The tests running here are measuring fast
     // functions so they tend to be impacted
     // by where the cache lines are wrt to the
-    // virtual pages perhap
+    // virtual pages perhaps
     //
     measure < AtomicSet < int > > ();
     measure < AtomicSet < size_t > > ();