Makefile: correct example fuzz build

diff --git a/Makefile b/Makefile
index 6b72f37c29fe4cd5aac9270ccedd63333a44ce4d..bbcfc2bc9fb27f8424f4647dc09bf10412530bb0 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -3104,7 +3104,7 @@ cover_db_html: cover_db
 # An example command to build against libFuzzer from LLVM 4.0.0:
 #
 # make CC=clang CXX=clang++ \
-#      FUZZ_CXXFLAGS="-fsanitize-coverage=trace-pc-guard -fsanitize=address" \
+#      CFLAGS="-fsanitize-coverage=trace-pc-guard -fsanitize=address" \
 #      LIB_FUZZING_ENGINE=/usr/lib/llvm-4.0/lib/libFuzzer.a \
 #      fuzz-all
 #