Add missing equal symbol

Author: hyhsu

segments/weather.sh

@@ -35,7 +35,7 @@ export TMUX_POWERLINE_SEG_WEATHER_GREP="${TMUX_POWERLINE_SEG_WEATHER_GREP_DEFAUL
 export TMUX_POWERLINE_SEG_WEATHER_JSON="${TMUX_POWERLINE_SEG_WEATHER_JSON_DEFAULT}"
 # Your location
 # Latitude and Longtitude for use with yr.no
-TMUX_POWERLINE_SEG_WEATHER_LAT""
+TMUX_POWERLINE_SEG_WEATHER_LAT=""
 TMUX_POWERLINE_SEG_WEATHER_LON=""
 EORC
 	echo "$rccontents"