fix nginx on root install

conf/nginx.conf

@@ -69,14 +69,14 @@ location ^~ __PATH__/ {
     access_log off;
   }
 
-  location ~ ^\__PATH__\/(?:build|tests|config|lib|3rdparty|templates|data)\/ {
+  location ~ ^__PATH__/(?:build|tests|config|lib|3rdparty|templates|data)\/ {
     deny all;
   }
-  location ~ ^\__PATH__\/(?:\.|autotest|occ|issue|indie|db_|console) {
+  location ~ ^__PATH__/(?:\.|autotest|occ|issue|indie|db_|console) {
     deny all;
   }
 
-  location ~ ^\__PATH__\/(?:index|remote|public|cron|core\/ajax\/update|status|ocs\/v[12]|updater\/.+|oc[ms]-provider\/.+|.+\/richdocumentscode\/proxy)\.php(?:$|\/) {
+  location ~ ^__PATH__/(?:index|remote|public|cron|core\/ajax\/update|status|ocs\/v[12]|updater\/.+|oc[ms]-provider\/.+|.+\/richdocumentscode\/proxy)\.php(?:$|\/) {
     fastcgi_split_path_info ^(.+?\.php)(\/.*|)$;
     set $path_info $fastcgi_path_info;
     try_files $fastcgi_script_name =404;
@@ -94,7 +94,7 @@ location ^~ __PATH__/ {
     fastcgi_request_buffering off;
   }
 
-  location ~ ^\__PATH__\/(?:updater|oc[ms]-provider)(?:$|\/) {
+  location ~ ^__PATH__/(?:updater|oc[ms]-provider)(?:$|\/) {
     try_files $uri/ =404;
     index index.php;
   }
@@ -120,7 +120,7 @@ location ^~ __PATH__/ {
   }
 
   # Adding the cache control header for js, css and map files
-  location ~ ^\__PATH__\/.+[^\/]\.(?:css|js|woff2?|svg|gif|map)$ {
+  location ~ ^__PATH__/.+[^\/]\.(?:css|js|woff2?|svg|gif|map)$ {
     try_files $uri __PATH__/index.php$request_uri;
     more_set_headers "Cache-Control: public, max-age=15778463";
     # Add headers to serve security related headers
@@ -137,7 +137,7 @@ location ^~ __PATH__/ {
     access_log off;
   }
 
-  location ~ ^\__PATH__\/.+[^\/]\.(?:png|html|ttf|ico|jpg|jpeg|bcmap)$ {
+  location ~ ^__PATH__/.+[^\/]\.(?:png|html|ttf|ico|jpg|jpeg|bcmap)$ {
     try_files $uri __PATH__/index.php$request_uri;
     # Optional: Don't log access to other assets
     access_log off;