Add a script to format suppression file

* tests/format-suppressions.py:
   this is the script used to generate valgrind/lasso.supp and
   valgrind/glib.supp.

tests/format-suppressions.py

@@ -0,0 +1,43 @@
+import re
+
+valgrind_log = open('log','r').read()
+
+inblock = False
+l = 0
+i = 0
+keep = dict()
+
+limit_re = r'type'
+
+for line in valgrind_log.splitlines():
+    if line.startswith('{'):
+        inblock = True
+        block = []
+        continue
+    if line.startswith('}'):
+        inblock = False
+        l = 0
+        i += 1
+        ok = False
+        name = ""
+        for x in block[2:]:
+            name = name + x
+            if re.search(limit_re, x):
+                ok = True
+                break
+        if ok:
+            keep[name] = block
+        continue
+    if inblock:
+        block.append(line)
+i = 43
+for x in keep:
+    block = keep[x]
+    print "{"
+    print "   suppression", i
+    for x in block[1:]:
+        print x
+        if re.search(limit_re, x):
+            break
+    print '}'
+    i += 1