Fix error sin string builder and path.

src/nvcore/StrLib.cpp

@@ -209,7 +209,7 @@ StringBuilder::StringBuilder( const StringBuilder & s ) : m_size(0), m_str(NULL)
 }
 
 /** Copy string. */
-StringBuilder::StringBuilder( const char * s )
+StringBuilder::StringBuilder( const char * s ) : m_size(0), m_str(NULL)
 {
 	copy(s);
 }

src/nvcore/StrLib.h

@@ -125,8 +125,8 @@ namespace nv
 	public:
 		Path() : StringBuilder() {}
 		explicit Path(int size_hint) : StringBuilder(size_hint) {}
-		Path( const char * str ) : StringBuilder(str) {}
-		Path(const StringBuilder & str) : StringBuilder(str) {}
+		Path(const char * str) : StringBuilder(str) {}
+		Path(const Path & path) : StringBuilder(path) {}
 		
 		const char * fileName() const;
 		const char * extension() const;