Changed TravisCI: Removed a Shellcheck debug, moved GPG to before_install

Author: frenck

.travis.yml

@@ -15,14 +15,14 @@ env:
 cache:
   directories:
   - "${HOME}/bin"
+before_install:
+  - gpg --keyserver hkp://keys.gnupg.net --recv-keys C4133165DF5EB4BAEABDADCACF1E7823C5339B59
 
 install:
-    - if ! shellcheck --version ; then
-        curl -sSL "${SHELLCHECK_URL}" | tar --exclude 'SHA256SUMS' --strip-components=1 -C "${HOME}/bin" -xjf -;
-      fi
-    - ls -la "${HOME}/bin"
-    - shellcheck --version
-    - gpg --keyserver hkp://keys.gnupg.net --recv-keys C4133165DF5EB4BAEABDADCACF1E7823C5339B59
+  - if ! shellcheck --version ; then
+      curl -sSL "${SHELLCHECK_URL}" | tar --exclude 'SHA256SUMS' --strip-components=1 -C "${HOME}/bin" -xjf -;
+    fi
+  - shellcheck --version
 
 script:
   - gpg --verify ./bin/install.sh.sig