- fixed a misprint.

libsolidity/interface/CompilerStack.cpp

@@ -145,7 +145,7 @@ bool CompilerStack::parse()
 		}
 	}
 	if (!Error::containsOnlyWarnings(m_errors))
-		// errors while parsing. sould stop before type checking
+		// errors while parsing. should stop before type checking
 		return false;
 
 	resolveImports();