brew link node 失败

1.报错一：

Linking /usr/local/Cellar/node/8.4.0... 

Error: Could not symlink share/doc/node/gdbinit

/usr/local/share/doc/node is not writable.

解决方案：

sudo chown -R `whoami`:admin /usr/local/share

2.报错二：

Linking /usr/local/Cellar/node/8.4.0... 

Error: Could not symlink lib/dtrace/node.d

/usr/local/lib/dtrace is not writable.

解决方案：

sudo chown -R `whoami`:admin /usr/local/lib/dtrace