Zsh 5.2 does not recognize the :P modifier

It fails with

    _zimfw_build_init:8: unrecognized modifier `P'

The `:P` modifier was introduced in Zsh 5.3. Replace it by `:A`, as we
still want to keep compatibility with Zsh 5.2.

Fixes #349

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
+- Zsh 5.2 does not recognize the `:P` modifier. Replace it by `:A`.
 
 ## [1.0.0] - 2020-01-07
 

src/stage2/29_zimfw_build_init.zsh.erb

@@ -6,8 +6,8 @@ _zimfw_build_init() {
   fi
   _zimfw_mv =(
     print -R "zimfw() { source ${ZIM_HOME}/zimfw.zsh \"\${@}\" }"
-    (( ${#_zfpaths} )) && print -R 'fpath=('${_zfpaths:P}' ${fpath})'
+    (( ${#_zfpaths} )) && print -R 'fpath=('${_zfpaths:A}' ${fpath})'
     (( ${#_zfunctions} )) && print -R 'autoload -Uz '${_zfunctions}
-    print -Rn ${(F):-source ${^_zscripts:P}}
+    print -Rn ${(F):-source ${^_zscripts:A}}
   ) ${ztarget}
 }

src/zimfw.zsh.erb

@@ -6,7 +6,7 @@ class Zim
     @home = "${ZDOTDIR:-${HOME}}"
     @min_zsh_version = "5.2"
     @startup_files_glob = ".z(shenv|shrc|login|logout)"
-    @version = "1.0.0"
+    @version = "1.0.1-SNAPSHOT"
     @ellipsis = " ..."
     @okay = "%F{green})%f "
     @error = "x "

zimfw.zsh

@@ -56,9 +56,9 @@ _zimfw_build_init() {
   fi
   _zimfw_mv =(
     print -R "zimfw() { source ${ZIM_HOME}/zimfw.zsh \"\${@}\" }"
-    (( ${#_zfpaths} )) && print -R 'fpath=('${_zfpaths:P}' ${fpath})'
+    (( ${#_zfpaths} )) && print -R 'fpath=('${_zfpaths:A}' ${fpath})'
     (( ${#_zfunctions} )) && print -R 'autoload -Uz '${_zfunctions}
-    print -Rn ${(F):-source ${^_zscripts:P}}
+    print -Rn ${(F):-source ${^_zscripts:A}}
   ) ${ztarget}
 }
 
@@ -263,7 +263,7 @@ _zimfw_compile() {
 }
 
 _zimfw_info() {
-  print 'Zim version:  1.0.0 (previous commit is edee218)'
+  print 'Zim version:  1.0.1-SNAPSHOT (previous commit is 0213f77)'
   print -R 'ZIM_HOME:     '${ZIM_HOME}
   print -R 'Zsh version:  '${ZSH_VERSION}
   print -R 'System info:  '$(command uname -a)