Suppress uninitialized read in CLD2::UTF8GenericReplaceInternal

BUG=334448
R=thestig@chromium.org
TBR=thestig@chromium.org
NOTRY=true

Review URL: https://codereview.chromium.org/254773003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@266238 0039d316-1c4b-4281-b951-d872f2087c98

tools/valgrind/drmemory/suppressions_full.txt

@@ -2087,3 +2087,12 @@ name=bug_364146
 ...
 v8.dll!*
 net_with_v8.dll!net::ProxyResolverV8::Context::*
+
+UNINITIALIZED READ
+name=bug_334448
+*!CLD2::UTF8GenericReplaceInternal
+*!CLD2::UTF8GenericReplace
+*!CLD2::ScriptScanner::LowerScriptSpan
+*!CLD2::ScriptScanner::GetOneScriptSpanLower
+*!CLD2::DetectLanguageSummaryV2
+*!CLD2::DetectLanguageSummary