patch 9.0.0072: compiler warning for uninitialized variable

Problem:    Compiler warning for uninitialized variable.
Solution:   Initialize it. (John Marriott)
diff --git a/src/drawline.c b/src/drawline.c
index d474de2..76176ab 100644
--- a/src/drawline.c
+++ b/src/drawline.c
@@ -819,7 +819,7 @@
     {
 	char_u		*prev_ptr = ptr;
 	chartabsize_T	cts;
-	int		charsize;
+	int		charsize = 0;
 
 	init_chartabsize_arg(&cts, wp, lnum, vcol, line, ptr);
 	while (cts.cts_vcol < v && *cts.cts_ptr != NUL)
diff --git a/src/version.c b/src/version.c
index 2f2d540..ed01c9e 100644
--- a/src/version.c
+++ b/src/version.c
@@ -736,6 +736,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    72,
+/**/
     71,
 /**/
     70,