fuzzers: rename "fuzz" directory to match our style

Our layout uses names like "examples" or "tests" which is why the "fuzz"
directory doesn't really fit in here. Rename the directory to be called
"fuzzers" instead. Furthermore, we rename the fuzzer "fuzz_packfile_raw"
to "packfile_raw_fuzzer", which is also in line with the already
existing fuzzer at google/oss-fuzz.

While at it, rename the "packfile_raw" fuzzer to instead just be called
"packfile" fuzzer.

CMakeLists.txt

@@ -312,7 +312,7 @@ IF(BUILD_FUZZERS)
 			MESSAGE(FATAL_ERROR "Cannot build the fuzzer targets and the tests together")
 		ENDIF()
 	ENDIF()
-	ADD_SUBDIRECTORY(fuzz)
+	ADD_SUBDIRECTORY(fuzzers)
 ENDIF()
 
 IF(CMAKE_VERSION VERSION_GREATER 3)

ci/test.sh

@@ -190,9 +190,8 @@ if [ -z "$SKIP_FUZZERS" ]; then
 	echo "## Running fuzzers"
 	echo "##############################################################################"
 
-	for fuzzer in $(find ./fuzz/ -type f -executable); do
-		fuzzer_name=$(basename "${fuzzer}")
-		"${fuzzer}" "../fuzz/corpora/${fuzzer_name}" || die $?
+	for fuzzer in fuzzers/*_fuzzer; do
+		"${fuzzer}" "../fuzzers/corpora/$(basename "${fuzzer%_fuzzer}")" || die $?
 	done
 fi
 

fuzzers/CMakeLists.txt

@@ -1,7 +1,7 @@
 LINK_DIRECTORIES(${LIBGIT2_LIBDIRS})
 INCLUDE_DIRECTORIES(${LIBGIT2_INCLUDES})
 
-FILE(GLOB SRC_FUZZ RELATIVE ${CMAKE_CURRENT_SOURCE_DIR} fuzz_*.c)
+FILE(GLOB SRC_FUZZ RELATIVE ${CMAKE_CURRENT_SOURCE_DIR} *_fuzzer.c)
 FOREACH(fuzz_target_src ${SRC_FUZZ})
 	STRING(REPLACE ".c" "" fuzz_target_name ${fuzz_target_src})
 	SET(${fuzz_target_name}_SOURCES ${fuzz_target_src} ${LIBGIT2_OBJECTS})