Fix static analysis failures

src/freedombone-app-radicale

     else
         # alter the existing site config
         if ! grep -q "# Start radicale" "/etc/nginx/sites-available/${DEFAULT_DOMAIN_NAME}"; then
-            sed -i "/]:443/a    # Start radicale\\n  location @radicale {\\n    auth_basic \"Radicale\";\\n    auth_basic_user_file \\/var\\/www\\/radicale\\/users;\\n    proxy_pass http:\\/\\/localhost:52322;\\n    proxy_buffering off;\\n    proxy_set_header Host $host;\\n    proxy_set_header X-Real-IP $remote_addr;\\n    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;\\n    proxy_set_header X-Forwarded-Proto $scheme;\\n  }\\n\\n  location \\/radicale {\\n      try_files $uri @radicale;\\n  }\n\n  location \\/.well-known\\/carddav {\\n      try_files $uri @radicale;\\n  }\\n\\n  location \\/.well-known\\/caldav {\\n      try_files $uri @radicale;\\n  }\n  # End radicale" "/etc/nginx/sites-available/${DEFAULT_DOMAIN_NAME}"
-            sed -i "/listen localhost/a    # Start radicale\\n  location @radicale {\\n    auth_basic \"Radicale\";\\n    auth_basic_user_file \\/var\\/www\\/radicale\\/users;\\n    proxy_pass http:\\/\\/localhost:52322;\\n    proxy_buffering off;\\n    proxy_set_header Host $host;\\n    proxy_set_header X-Real-IP $remote_addr;\\n    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;\\n    proxy_set_header X-Forwarded-Proto $scheme;\\n  }\\n\\n  location \/radicale {\\n      try_files $uri @radicale;\\n  }\\n\\n  location \\/.well-known\\/carddav {\\n      try_files $uri @radicale;\\n  }\\n\\n  location \\/.well-known\\/caldav {\\n      try_files $uri @radicale;\\n  }\\n  # End radicale" "/etc/nginx/sites-available/${DEFAULT_DOMAIN_NAME}"
+            sed -i "/]:443/a    # Start radicale\\n  location @radicale {\\n    auth_basic \"Radicale\";\\n    auth_basic_user_file \\/var\\/www\\/radicale\\/users;\\n    proxy_pass http:\\/\\/localhost:52322;\\n    proxy_buffering off;\\n    proxy_set_header Host \$host;\\n    proxy_set_header X-Real-IP \$remote_addr;\\n    proxy_set_header X-Forwarded-For \$proxy_add_x_forwarded_for;\\n    proxy_set_header X-Forwarded-Proto \$scheme;\\n  }\\n\\n  location \\/radicale {\\n      try_files \$uri @radicale;\\n  }\\n\\n  location \\/.well-known\\/carddav {\\n      try_files \$uri @radicale;\\n  }\\n\\n  location \\/.well-known\\/caldav {\\n      try_files \$uri @radicale;\\n  }\\n  # End radicale" "/etc/nginx/sites-available/${DEFAULT_DOMAIN_NAME}"
+            sed -i "/listen localhost/a    # Start radicale\\n  location @radicale {\\n    auth_basic \"Radicale\";\\n    auth_basic_user_file \\/var\\/www\\/radicale\\/users;\\n    proxy_pass http:\\/\\/localhost:52322;\\n    proxy_buffering off;\\n    proxy_set_header Host \$host;\\n    proxy_set_header X-Real-IP \$remote_addr;\\n    proxy_set_header X-Forwarded-For \$proxy_add_x_forwarded_for;\\n    proxy_set_header X-Forwarded-Proto \$scheme;\\n  }\\n\\n  location \\/radicale {\\n      try_files \$uri @radicale;\\n  }\\n\\n  location \\/.well-known\\/carddav {\\n      try_files \$uri @radicale;\\n  }\\n\\n  location \\/.well-known\\/caldav {\\n      try_files \$uri @radicale;\\n  }\\n  # End radicale" "/etc/nginx/sites-available/${DEFAULT_DOMAIN_NAME}"
         fi
     fi