Fix the -Wmissing-designated-field-initializers on the clang-ppc64le-rhel bot

Author: amy-kwan

compiler-rt/lib/scudo/standalone/tests/strings_test.cpp

@@ -136,7 +136,7 @@ TEST(ScudoStringsTest, CapacityIncreaseFails) {
 
   rlimit Limit = {};
   EXPECT_EQ(0, getrlimit(RLIMIT_AS, &Limit));
-  rlimit EmptyLimit = {.rlim_max = Limit.rlim_max};
+  rlimit EmptyLimit = {.rlim_cur = 0, .rlim_max = Limit.rlim_max};
   EXPECT_EQ(0, setrlimit(RLIMIT_AS, &EmptyLimit));
 
   // Test requires that the default length is at least 6 characters.

compiler-rt/lib/scudo/standalone/tests/vector_test.cpp

@@ -55,7 +55,7 @@ TEST(ScudoVectorTest, ReallocateFails) {
   rlimit Limit = {};
   EXPECT_EQ(0, getrlimit(RLIMIT_AS, &Limit));
 
-  rlimit EmptyLimit = {.rlim_max = Limit.rlim_max};
+  rlimit EmptyLimit = {.rlim_cur = 0, .rlim_max = Limit.rlim_max};
   EXPECT_EQ(0, setrlimit(RLIMIT_AS, &EmptyLimit));
 
   V.resize(capacity);