During install, only prepend /usr/local/bin to $PATH if its not already in the $PATH.
Problem:
As many commons scripts already add /usr/local/bin it to path, we do not want to overwrite these, especially since it may cause PATH conflicts.
For example brew or conda might have preferences for this not being the first entry, but might already add it. So do not overwrite the path with such a destructive choice if we can already find /usr/local/bin in Path. Only add it if we do not find it.
During install, only prepend /usr/local/bin to $PATH if its not already in the $PATH.
Problem:
As many commons scripts already add /usr/local/bin it to path, we do not want to overwrite these, especially since it may cause PATH conflicts.
For example brew or conda might have preferences for this not being the first entry, but might already add it. So do not overwrite the path with such a destructive choice if we can already find /usr/local/bin in Path. Only add it if we do not find it.