Update log file location on macOS.

init/launchd/com.github.davidnewhall.unifi-poller.plist

@@ -15,8 +15,8 @@
         <key>KeepAlive</key>
         <true/>
         <key>StandardErrorPath</key>
-        <string>/usr/local/var/log/unifi-poller/log</string>
+        <string>/usr/local/var/log/unifi-poller.log</string>
         <key>StandardOutPath</key>
-        <string>/usr/local/var/log/unifi-poller/log</string>
+        <string>/usr/local/var/log/unifi-poller.log</string>
     </dict>
 </plist>

templates/unifi-poller.rb.tmpl

@@ -25,7 +25,7 @@ class UnifiPoller < Formula
       # If this fails, the user gets a nice big warning about write permissions on their
       # [/usr/local/]var/log folder. The alternative could be letting the app silently
       # fail to start when it cannot write logs. This is better. Fix perms; reinstall.
-      system "mkdir", "-p", "#{var}/log/unifi-poller"
+      system "touch", "#{var}/log/unifi-poller.log"
     end
   end
   def caveats
@@ -33,7 +33,7 @@ class UnifiPoller < Formula
   This application will not work until the config file has authentication
   information for a Unifi Controller and an Influx Database. Edit the config
   file at #{etc}/unifi-poller/up.conf then start the application with
-  brew services start unifi-poller ~ log file: #{var}/log/unifi-poller/log
+  brew services start unifi-poller ~ log file: #{var}/log/unifi-poller.log
   The manual explains the config file options: man unifi-poller
     EOS
   end
@@ -56,9 +56,9 @@ class UnifiPoller < Formula
            <key>KeepAlive</key>
            <true/>
            <key>StandardErrorPath</key>
-           <string>#{var}/log/unifi-poller/log</string>
+           <string>#{var}/log/unifi-poller.log</string>
            <key>StandardOutPath</key>
-           <string>#{var}/log/unifi-poller/log</string>
+           <string>#{var}/log/unifi-poller.log</string>
        </dict>
    </plist>
    EOS