feature/pgtk cd72fba 1/2: Free unneeded context

[Yuuki Harano]

branch: feature/pgtk
commit cd72fba0437ab5fcd6bf17a2b85ed1aedd3739d4
Author: Yuuki Harano <masm+github@masm11.me>
Commit: Yuuki Harano <masm+github@masm11.me>

    Free unneeded context
    
    * src/pgtkterm.c (pgtk_flash): Free unneeded cairo_t.
---
 src/pgtkterm.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/pgtkterm.c b/src/pgtkterm.c
index f67d509..0038167 100644
--- a/src/pgtkterm.c
+++ b/src/pgtkterm.c
@@ -3770,6 +3770,8 @@ pgtk_flash (struct frame *f)
 
 #undef XFillRectangle
     }
+
+    cairo_destroy (cr);
   }
 
   unblock_input ();