theme/gitline: cleanup

Author: gaelicWizard

themes/gitline/gitline.theme.bash

@@ -10,7 +10,7 @@ PROMPT_DISTRO_LOGO_COLORBG=52
 
 #Prompt Seperator Charactors
 PROMPT_CHAR=${POWERLINE_PROMPT_CHAR:=""}
-POWERLINE_LEFT_SEPARATOR=${POWERLINE_LEFT_SEPARATOR:=""}
+: "${POWERLINE_LEFT_SEPARATOR:=""}"
 
 #USER INFO CHARACTERS
 USER_INFO_SSH_CHAR=${POWERLINE_USER_INFO_SSH_CHAR:=" "}
@@ -55,12 +55,12 @@ LAST_STATUS_THEME_PROMPT_COLOR=52
 CLOCK_THEME_PROMPT_COLOR=240
 
 #For Battery Plugin
-BATTERY_AC_CHAR=${BATTERY_AC_CHAR:="⚡"}
+: "${BATTERY_AC_CHAR:="⚡"}"
 BATTERY_STATUS_THEME_PROMPT_GOOD_COLOR=70
 BATTERY_STATUS_THEME_PROMPT_LOW_COLOR=208
 BATTERY_STATUS_THEME_PROMPT_CRITICAL_COLOR=160
 
-THEME_CLOCK_FORMAT=${THEME_CLOCK_FORMAT:="%H:%M:%S"}
+: "${THEME_CLOCK_FORMAT:="%H:%M:%S"}"
 
 IN_VIM_THEME_PROMPT_COLOR=245
 IN_VIM_THEME_PROMPT_TEXT="vim"