Fix another type mismatch introduced by r9409.

[originally from svn r9427]
[r9409 == 053d2ba6d1c35c3d3c77bbc48bfd31fd8628ed35]

diff --git a/wcwidth.c b/wcwidth.c
index 8d6adc4aeb7fe91d417d1084ee548f6a7ce976cf..ec0fb2ba06910bcc85d039d684c5b98cfa9ff705 100644 (file)
--- a/wcwidth.c
+++ b/wcwidth.c
@@ -64,8 +64,8 @@
 #include "putty.h" /* for prototypes */
 
 struct interval {
-  int first;
-  int last;
+  unsigned int first;
+  unsigned int last;
 };
 
 /* auxiliary function for binary search in interval table */