per Jeremy Huddleston's patch, fix compilation problem caused by
break_line()'s returning int when it should return ssize_t according to
its prototype


git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@2155 35c25a1d-7b9e-4130-9fde-d3aeb78583b8
diff --git a/src/nano.c b/src/nano.c
index 566b8a6..3408b79 100644
--- a/src/nano.c
+++ b/src/nano.c
@@ -2572,7 +2572,7 @@
  * such space, and force is TRUE, then we find the first space.  Anyway,
  * we then take the last space in that group of spaces.  The terminating
  * '\0' counts as a space. */
-int break_line(const char *line, ssize_t goal, bool force)
+ssize_t break_line(const char *line, ssize_t goal, bool force)
 {
     ssize_t space_loc = -1;
 	/* Current tentative return value.  Index of the last space we