Merge bitcoin#10033: Trivial: Fix typo in key.h comment

f490dae Trivial: Fix typo in key.h comment (Michael Goldstein)

Tree-SHA512: 4b79bfa88313d3558edb9ab1c6d27bd45659355e81f224ba75c05ff069ebae4c9f443efd70ae274814bbb7cca8a9057942b9b867055c48e93822ac73e38a51ce

Author: MarcoFalke

src/key.h

@@ -45,7 +45,7 @@ class CKey
     //! The actual byte data
     std::vector<unsigned char, secure_allocator<unsigned char> > keydata;
 
-    //! Check whether the 32-byte array pointed to be vch is valid keydata.
+    //! Check whether the 32-byte array pointed to by vch is valid keydata.
     bool static Check(const unsigned char* vch);
 
 public: