maint: Clean up m-files to follow Octave coding conventions. Try to trim long lines to < 80 chars. Use '##' for single line comments. Use '(...)' around tests for if/elseif/switch/while. Abut cell indexing operator '{' next to variable. Abut array indexing operator '(' next to variable. Use space between negation operator '!' and following expression. Use two newlines between endfunction and start of %!test or %!demo code. Remove unnecessary parens grouping between short-circuit operators. Remove stray extra spaces (typos) between variables and assignment operators. Remove stray extra spaces from ends of lines.

--- a/scripts/strings/dec2base.m	Mon Feb 23 16:42:25 2015 +0000
+++ b/scripts/strings/dec2base.m	Mon Feb 23 14:54:39 2015 -0800
@@ -158,7 +158,7 @@
 %! a = 0:3;
 %! assert (dec2base (!a, 2, 1), ["1"; "0"; "0"; "0"])
 
-%%Test input validation
+## Test input validation
 %!error dec2base ()
 %!error dec2base (1)
 %!error dec2base (1, 2, 3, 4)