Short option for --summary-string in 'type summary add' is now -s. This might be a breaking change for those who have summaries defined.

git-svn-id: https://llvm.org/svn/llvm-project/llvdb/trunk@138331 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/examples/summaries/essentials b/examples/summaries/essentials
index 94a15c3..85e87e2 100644
--- a/examples/summaries/essentials
+++ b/examples/summaries/essentials
@@ -1,2 +1,5 @@
-type summary add -f "${var._M_dataplus._M_p}" std::string std::basic_string<char> "std::basic_string<char,std::char_traits<char>,std::allocator<char> >"
-type summary add -f "\"${var%@}\"" "NSString *"
+type summary add -s "${var._M_dataplus._M_p}" std::string std::basic_string<char> "std::basic_string<char,std::char_traits<char>,std::allocator<char> >"
+type summary add -s "\"${var%@}\"" "NSString *"
+type summary add -s "${svar%#} items" -e -x std::map<
+type summary add -s "${svar%#} items" -e -x std::vector<
+type summary add -s "${svar%#} items" -e -x std::list<