Update clang-format

refer: https://github.com/openbmc/docs/blob/master/style/cpp/.clang-format
`Don't break long string literals`

Tested: built bmcweb successfully and RedfishValidator Passed.

Signed-off-by: George Liu <liuxiwei@inspur.com>
Change-Id: Ib58f7c942fd3838592e043c57e0b6ffcdc3d963b
diff --git a/.clang-format b/.clang-format
index 52ac0a1..cab3139 100644
--- a/.clang-format
+++ b/.clang-format
@@ -41,7 +41,7 @@
 BreakBeforeTernaryOperators: true
 BreakConstructorInitializers: AfterColon
 BreakInheritanceList: AfterColon
-BreakStringLiterals: true
+BreakStringLiterals: false
 ColumnLimit:     80
 CommentPragmas:  '^ IWYU pragma:'
 CompactNamespaces: false