added free to avoid resource leakage [coverity #132132]
added free to avoid resource leakage [coverity #132132]

nikhilsinghmus/csound,nikhilsinghmus/csound,nikhilsinghmus/csound,nikhilsinghmus/csound,Angeldude/csound,nikhilsinghmus/csound,Angeldude/csound,nikhilsinghmus/csound,Angeldude/csound,Angeldude/csound,nikhilsinghmus/csound,nikhilsinghmus/csound,Angeldude/csound,Angeldude/csound,Angeldude/csound,Angeldude/csound,nikhilsinghmus/csound,Angeldude/csound,Angeldude/csound,nikhilsinghmus/csound