Update tools/f90mkdepend

MacOS, remove comma at line end

Co-authored-by: Martin Losch <[email protected]>

tools/f90mkdepend

@@ -72,7 +72,7 @@ for filename in *.F90 *.F *.h; do
   # quick check for "use" to speed up processing
   if grep -i '^ *use ' $filename > /dev/null; then
     # extract module name in lower case
-    modreflist=$(grep -i '^ *use ' $filename | awk '{print tolower($2)}' | sed 's/,.*$\|\r$//')
+    modreflist=$(grep -i '^ *use ' $filename | awk '{print tolower($2)}' | sed 's/,.*$//' | sed 's/\r$//')
 
     echo "$filename => $modreflist" >> f90mkdepend.log