dialog: fix "no blanks" issue w/ BE targets

Signed-off-by: Jürgen Buchmüller <pullmoll@t-online.de>

srcpkgs/dialog/patches/trim-blank.patch

@@ -0,0 +1,21 @@
+Source: @pullmoll
+Upstream: no (should be queried)
+Reason: fix issue with dialog dropping blanks (BE targets)
+
+The conversion of isblank() to int is vague thus use constants.
+Pre decrement the dst ptr and test for it being greater than base.
+
+--- util.c	2018-06-22 01:47:10.000000000 +0200
++++ util.c	2019-05-30 10:35:00.517648968 +0200
+@@ -2330,9 +2330,9 @@
+ static bool
+ trim_blank(char *base, char *dst)
+ {
+-    int count = isblank(UCH(*dst));
++    int count = isblank(UCH(*dst)) ? 1 : 0;
+ 
+-    while (dst-- != base) {
++    while (--dst > base) {
+ 	if (*dst == '\n') {
+ 	    break;
+ 	} else if (isblank(UCH(*dst))) {

srcpkgs/dialog/template

@@ -3,7 +3,7 @@ pkgname=dialog
 _distver=1.3
 _date=20190211
 version="${_distver}.${_date}"
-revision=1
+revision=2
 wrksrc="${pkgname}-${_distver}-${_date}"
 build_style=gnu-configure
 configure_args="--with-ncursesw --disable-nls"