Merge pull request #214 from gfldex/master

clarify IO::Handle.getc

Author: zoffixznet

doc/Type/IO/Handle.pod

@@ -24,7 +24,8 @@ Read one line from a file:
 
 =head2 method getc
 
-Read a single character from the input stream.
+Read a single character from the input stream or return Nil. The operation is blocking
+and the stream may be buffered.
 
 =head2 method eof