update ph.require

inc_pluginfunctions

@@ -39,6 +39,7 @@
 # 2023-06-22  v1.11 <axel.hahn@unibe.ch>      fix ph.toUnit with float values; shell fixes
 # 2023-08-24  v1.12 <axel.hahn@unibe.ch>      toUnit got 3rd param for count of digits after "."
 # 2023-08-30  v1.13 <axel.hahn@unibe.ch>      reverse return code in ph.hasParamoption to unix like return codes: 0=true; <>0 = false
+# 2023-09-05  v1.14 <axel.hahn@unibe.ch>      ph.require - show error below status line
 # ======================================================================
 
 
@@ -62,10 +63,11 @@ function ph.abort(){
 # check required binaries in the path
 # param(s)  string  name of binary to check with "which" command
 function ph.require(){
-  which $* >/dev/null 
-  if [ $? -ne 0 ]; then
+  local _out;
+  if ! _out=$( which $* 2>&1 ); then
       ph.setStatus "unknown"
       ph.status "$0 requires the following tools to run: $*"
+      echo "$_out"
       ph.exit
   fi
 }