require zsh 5.3 for nordvpn segment; fixes #148

config/p10k-classic.zsh

@@ -58,7 +58,7 @@ fi
       # rbenv                 # ruby version from rbenv (https://github.com/rbenv/rbenv)
       kubecontext             # current kubernetes context (https://kubernetes.io/)
       context                 # user@host
-      # nordvpn               # nordvpn connection status, linux only (https://nordvpn.com/)
+      nordvpn                 # nordvpn connection status, linux only (https://nordvpn.com/)
       # =========================[ Line #2 ]=========================
       newline
       # public_ip             # public IP address

config/p10k-lean.zsh

@@ -60,7 +60,7 @@ fi
       # rbenv                 # ruby version from rbenv (https://github.com/rbenv/rbenv)
       kubecontext             # current kubernetes context (https://kubernetes.io/)
       context                 # user@host
-      # nordvpn               # nordvpn connection status, linux only (https://nordvpn.com/)
+      nordvpn                 # nordvpn connection status, linux only (https://nordvpn.com/)
       # =========================[ Line #2 ]=========================
       newline
       # public_ip             # public IP address

internal/p10k.zsh

@@ -4196,7 +4196,8 @@ _p9k_init() {
     print -rP -- 'Either install %F{green}jq%f or change the value of %BPOWERLEVEL9K_SHORTEN_STRATEGY%b.'
   fi
 
-  if (( !$+__p9k_char2byte )) && _p9k_segment_in_use nordvpn; then
+  # There is no q+ flag before 5.3.
+  if (( !$+__p9k_char2byte )) && _p9k_segment_in_use nordvpn && is-at-least 5.3; then
     typeset -gA __p9k_char2byte=()
     local -i x=0 y=0
     for x in {0..7}; do