Fix "no such file or directory" error

before initial check for latest version. Not all versions of Zsh or all
OSs are affected. Error seen with Zsh 5.6.2 running on FreeBSD is:

    _zimfw_version_check:10: no such file or directory: /path/to/.latest_version

CHANGELOG.md

@@ -7,7 +7,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
-_No unreleased changes._
+### Fixed
+- "no such file or directory" error before initial check for latest version.
 
 ## [1.1.0] - 2020-01-20
 

src/stage2/40_zimfw_version_check.zsh.erb

@@ -8,9 +8,11 @@ _zimfw_version_check() {
           command sed 's?^.*/v??' | command sort -n -t. -k1,1 -k2,2 -k3,3 | \
           command tail -n1 >! ${ztarget} &!
     fi
-    local -r zlatest_version=$(<${ztarget})
-    if [[ -n ${zlatest_version} && ${_zversion} != ${zlatest_version} ]]; then
-      print -u2 -PR "%F{yellow}Latest zimfw version is %B${zlatest_version}%b. You're using version %B${_zversion}%b. Run %Bzimfw upgrade%b to upgrade.%f"$'\n'
+    if [[ -f ${ztarget} ]]; then
+      local -r zlatest_version=$(<${ztarget})
+      if [[ -n ${zlatest_version} && ${_zversion} != ${zlatest_version} ]]; then
+        print -u2 -PR "%F{yellow}Latest zimfw version is %B${zlatest_version}%b. You're using version %B${_zversion}%b. Run %Bzimfw upgrade%b to upgrade.%f"$'\n'
+      fi
     fi
   fi
 }

src/zimfw.zsh.erb

@@ -6,7 +6,7 @@ class Zim
     @home = "${ZDOTDIR:-${HOME}}"
     @min_zsh_version = "5.2"
     @startup_files_glob = ".z(shenv|profile|shrc|login|logout)"
-    @version = "1.1.0"
+    @version = "1.1.1-SNAPSHOT"
     @ellipsis = " ..."
     @okay = "%F{green})%f "
     @error = "x "

zimfw.zsh

@@ -246,9 +246,11 @@ _zimfw_version_check() {
           command sed 's?^.*/v??' | command sort -n -t. -k1,1 -k2,2 -k3,3 | \
           command tail -n1 >! ${ztarget} &!
     fi
-    local -r zlatest_version=$(<${ztarget})
-    if [[ -n ${zlatest_version} && ${_zversion} != ${zlatest_version} ]]; then
-      print -u2 -PR "%F{yellow}Latest zimfw version is %B${zlatest_version}%b. You're using version %B${_zversion}%b. Run %Bzimfw upgrade%b to upgrade.%f"$'\n'
+    if [[ -f ${ztarget} ]]; then
+      local -r zlatest_version=$(<${ztarget})
+      if [[ -n ${zlatest_version} && ${_zversion} != ${zlatest_version} ]]; then
+        print -u2 -PR "%F{yellow}Latest zimfw version is %B${zlatest_version}%b. You're using version %B${_zversion}%b. Run %Bzimfw upgrade%b to upgrade.%f"$'\n'
+      fi
     fi
   fi
 }
@@ -276,7 +278,7 @@ _zimfw_compile() {
 }
 
 _zimfw_info() {
-  print -R 'zimfw version: '${_zversion}' (previous commit is 64f36fe)'
+  print -R 'zimfw version: '${_zversion}' (previous commit is bebbfce)'
   print -R 'ZIM_HOME:      '${ZIM_HOME}
   print -R 'Zsh version:   '${ZSH_VERSION}
   print -R 'System info:   '$(command uname -a)
@@ -320,7 +322,7 @@ _zimfw_upgrade() {
 }
 
 zimfw() {
-  local -r _zversion='1.1.0'
+  local -r _zversion='1.1.1-SNAPSHOT'
   local -r zusage="Usage: %B${0}%b <action> [%B-q%b|%B-v%b]
 
 Actions: