src/file.c:105:  Almost always, snprintf is better than strcat  [runtime/printf] [4]

src/ketopt.h:1:  #ifndef header guard has wrong style, please use: SRC_KETOPT_H_  [build/header_guard] [5]

src/ketopt.h:120:  #endif line should be "#endif  // SRC_KETOPT_H_"  [build/header_guard] [5]

src/repl.c:341:  Almost always, snprintf is better than strcpy  [runtime/printf] [4]

src/repl.c:359:  Almost always, snprintf is better than strcat  [runtime/printf] [4]

src/repl.c:396:  Almost always, snprintf is better than strcat  [runtime/printf] [4]

src/repl.c:347:  Add #include <cstdio> for fflush  [build/include_what_you_use] [4]