fixup! Travis: test more Zsh versions

.travis.yml

@@ -1,24 +1,24 @@
 language: generic
 sudo: false
 env:
-  - ZSH=4.3.17
-  - ZSH=5.0.8
-  - ZSH=5.1.1
-  - ZSH=5.2
-  - ZSH=5.3.1
+  - TEST_ZSH=4.3.17
+  - TEST_ZSH=5.0.8
+  - TEST_ZSH=5.1.1
+  - TEST_ZSH=5.2
+  - TEST_ZSH=5.3.1
 
 install:
   - |
-    if [ "$ZSH" = 4.3.17 ]; then
+    if [ "$TEST_ZSH" = 4.3.17 ]; then
       sudo apt-get install zsh
       if [ "$(zsh --version)" != "zsh 4.3.17 (x86_64-unknown-linux-gnu)" ]; then
         echo "Unexpected Zsh version: $(zsh --version)"
         exit 1
       fi
     else
-      (wget http://downloads.sourceforge.net/project/zsh/zsh/$ZSH/zsh-$ZSH.tar.bz2
-      tar xf zsh-$ZSH.tar.bz2
-      cd zsh-$ZSH
+      (wget http://downloads.sourceforge.net/project/zsh/zsh/$TEST_ZSH/zsh-$TEST_ZSH.tar.bz2
+      tar xf zsh-$TEST_ZSH.tar.bz2
+      cd zsh-$TEST_ZSH
       ./configure && sudo make && sudo make install)
     fi
   - pip install --user cram
@@ -26,4 +26,4 @@ install:
 script:
   - zsh --version
   - which zsh
-  - make test
+  - make test_full