5.2-stable regression for log axes still not fixed completely

[Achim G. <Str...@ne...>]

I've been building gnuplot for Cygwin from the stable branch over the
weekend in order to get the fix for the log axis regression.  I have the
grid lines and tics back in my plot, but there is yet another
regression: The 5.0 branch will put the major tics on integer exponents
of the base.  The 5.2 branch will only do that if the first defined tic
is located inside the axis range and otherwise uses the lower end of the
range to start from.  This is interesting and maybe even useful
sometimes, but it breaks a lot of plotting scripts, so it shouldn't do
this by default I think.

To reproduce:

--8<---------------cut here---------------start------------->8---
set log x 10
set mxtics 10
set xtics 10
set xrange [pi:1e4*pi]
plot sin(x)
--8<---------------cut here---------------end--------------->8---

--8<---------------cut here---------------start------------->8---
set log x 10
set mxtics 10
set xtics 3,10
set xrange [pi:1e4*pi]
plot sin(x)
--8<---------------cut here---------------end--------------->8---

--8<---------------cut here---------------start------------->8---
set log x 10
set mxtics 10
set xtics 4,10
set xrange [pi:1e4*pi]
plot sin(x)
--8<---------------cut here---------------end--------------->8---

I hope this can still be fixed for 5.2.1 (fingers crossed).


Regards,
Achim.
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