croposp [MERGE]: merge recent changes in python/visu on master

src/python/visu/COPYING

@@ -22,5 +22,3 @@ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 ----
 
 ----- END OF COPYING ----- 
-
------ END OF COPYING ----- 

src/python/visu/Makefile

+# this is <Makefile>
+# ----------------------------------------------------------------------------
+# 
+# Copyright (c) 2019 by Thomas Forbriger (BFO Schiltach) 
+# 
+# support editing in python/visu
+# 
+# REVISIONS and CHANGES 
+#    21/01/2019   V1.0   Thomas Forbriger
+# 
+# ============================================================================
+#
+
+all:
+
+flist: Makefile $(wildcard *.py) COPYING README
+	echo $^ | tr ' ' '\n' | sort > $@
+
+.PHONY: edit
+edit: flist; vim $<
+
+.PHONY: clean
+clean: ; 
+	-find . -name \*.bak | xargs --no-run-if-empty /bin/rm -v
+	-/bin/rm -vf flist
+
+
+# ----- END OF Makefile ----- 

src/python/visu/specplot.py

@@ -10,6 +10,9 @@
 # 
 # Purpose: Plot the power spectrum.
 #
+# This program is primarily provided to plot data from two-column files
+# as produced by foutra.
+#
 # ----
 #
 # This program is free software: you can redistribute it and/or modify
@@ -91,6 +94,10 @@ def help():
   help_text = \
   """
 -------------------------------------------------------------------------------
+
+This program is primarily provided to plot data from two-column files
+as produced by foutra.
+
  -v|--verbose         Be verbose.
  -h|--help            Display this help.
  --overwrite          Overwrite output file if existing.