Fix ' invalid conversion from 'const char*' to 'char*' [-fpermissive]' for compiling on Unix (with GCC)
Fix ' invalid conversion from 'const char*' to 'char*' [-fpermissive]' for compiling on Unix (with GCC)

blueconic/node-oom-heapdump,blueconic/node-oom-heapdump,blueconic/node-oom-heapdump