CI: factor and enhance version info

Author: bonachea

.github/workflows/build.yml

@@ -205,12 +205,15 @@ jobs:
     - name: Version info
       run: |
         echo == TOOL VERSIONS ==
-        echo PATH="$PATH"
-        set -x
+        echo Platform version info:
         uname -a
-        if test -r /etc/os-release ; then cat /etc/os-release ; fi
-        ${FPM_FC} --version
-        fpm --version
+        if test -r /etc/os-release ; then grep -e NAME -e VERSION /etc/os-release  ; fi
+        if test -x /usr/bin/sw_vers ; then /usr/bin/sw_vers ; fi
+        echo
+        echo PATH="$PATH"
+        for tool in ${FPM_FC} fpm ; do
+          ( echo ; set -x ; w=$(which $tool) ; ls -al $w ; ls -alhL $w ; $tool --version )
+        done
 
     - name: Build and Test (Assertions OFF)
       run: |