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/optimization/fminbnd.m	Mon Feb 23 16:42:25 2015 +0000
+++ b/scripts/optimization/fminbnd.m	Mon Feb 23 14:54:39 2015 -0800
@@ -53,7 +53,8 @@
 ## @end deftypefn
 
 ## This is patterned after opt/fmin.f from Netlib, which in turn is taken from
-## Richard Brent: Algorithms For Minimization Without Derivatives, Prentice-Hall (1973)
+## Richard Brent: Algorithms For Minimization Without Derivatives,
+## Prentice-Hall (1973)
 
 ## PKG_ADD: ## Discard result to avoid polluting workspace with ans at startup.
 ## PKG_ADD: [~] = __all_opts__ ("fminbnd");