install.sh: Treat $binpath as target directory.

In case $binpath/$bin is an already existing directory, the command

    mv "$bin" "$binpath/$bin"

would store the binary in the place $binpath/$bin/$bin. I guess this is
not the expected behavior. Therefore I used the -t option of `mv' to
specify the target directory explicitly.

License: MIT
Signed-off-by: Stephan Kulla <git.mail@kulla.me>

cmd/ipfs/dist/install.sh

@@ -9,7 +9,7 @@ binpaths="/usr/local/bin /usr/bin"
 
 for binpath in $binpaths; do
   if [ -d "$binpath" ]; then
-    mv "$bin" "$binpath/$bin"
+    mv -t "$binpath" "$bin"
     echo "installed $binpath/$bin"
     exit 0
   fi