gnuplot: Update to 5.2.2 (msys2#3439)

mingw-w64-gnuplot/01-gnuplot.patch

@@ -344,3 +344,14 @@ diff -Naur gnuplot-5.2.0.orig/src/win/winmain.c gnuplot-5.2.0/src/win/winmain.c
  dnl Enable subsystem to generate statistical summary of file contents
  AC_ARG_ENABLE(stats,dnl
  [  --disable-stats         Omit calculation of statistical summary of data],
+--- gnuplot-5.2.0.orig/demo/plugin/Makefile.am.orig	2016-06-22 22:58:42.000000000 +0200
++++ gnuplot-5.2.0/demo/plugin/Makefile.am	2018-02-23 15:44:39.590296200 +0100
+@@ -4,8 +4,8 @@
+ noinst_PROGRAMS = demo_plugin.so
+
+ demo_plugin_so_SOURCES = demo_plugin.c gnuplot_plugin.h
+-demo_plugin_so_CFLAGS = -rdynamic -fPIC -I$(top_srcdir)/src
++demo_plugin_so_CFLAGS =  -fPIC -I$(top_srcdir)/src
+ demo_plugin_so_LDFLAGS = -shared
+
+ # Note: Solaris SunPro C compiler needs these flags instead

mingw-w64-gnuplot/PKGBUILD

@@ -3,8 +3,8 @@
 _realname=gnuplot
 pkgbase=mingw-w64-${_realname}
 pkgname=("${MINGW_PACKAGE_PREFIX}-${_realname}")
-pkgver=5.2.0
-pkgrel=3
+pkgver=5.2.2
+pkgrel=1
 pkgdesc="Plotting package which outputs to X11, PostScript, PNG, GIF, and others (mingw-w64)"
 arch=('any')
 url='http://www.gnuplot.info/'
@@ -20,8 +20,8 @@ depends=("${MINGW_PACKAGE_PREFIX}-readline"
 options=('strip' 'staticlibs')
 source=("https://downloads.sourceforge.net/sourceforge/${_realname}/${_realname}-${pkgver}.tar.gz"
         "01-gnuplot.patch" )
-sha256sums=('7dfe6425a1a6b9349b1fb42dae46b2e52833b13e807a78a613024d6a99541e43'
-            'c045d625cacc9988401c4423d84eb09e36a06b671bb75506273b9cf4a4f8957d')
+sha256sums=('a416d22f02bdf3873ef82c5eb7f8e94146795811ef808e12b035ada88ef7b1a1'
+            '0cb8d3814a512b6e7de90f0f35dce0b73c7bc483201327d5ebab95b81b8b2dc9')
 
 
 prepare() {