diff --git a/lib/roken/err.h b/lib/roken/err.h
index 79b8dea42..f9c8aeb3e 100644
--- a/lib/roken/err.h
+++ b/lib/roken/err.h
@@ -15,15 +15,24 @@ extern const char *__progname;
 #define __attribute__(x)
 #endif
 
-void warnerr(int doexit, int eval, int doerrno, const char *fmt, va_list ap) __attribute__ ((noreturn, format (printf, 4, 0)));
+void warnerr(int doexit, int eval, int doerrno, const char *fmt, va_list ap)
+     __attribute__ ((noreturn, format (printf, 4, 0)));
 
-void verr(int eval, const char *fmt, va_list ap) __attribute__ ((noreturn, format (printf, 2, 0)));
-void err(int eval, const char *fmt, ...)  __attribute__ ((noreturn, format (printf, 2, 3)));
-void verrx(int eval, const char *fmt, va_list ap) __attribute__ ((noreturn, format (printf, 2, 0)));
-void errx(int eval, const char *fmt, ...)  __attribute__ ((noreturn, format (printf, 2, 3)));
-void vwarn(const char *fmt, va_list ap) __attribute__ ((format (printf, 1, 0)));
-void warn(const char *fmt, ...)  __attribute__ ((format (printf, 1, 2)));
-void vwarnx(const char *fmt, va_list ap) __attribute__ ((format (printf, 1, 0)));
-void warnx(const char *fmt, ...)  __attribute__ ((format (printf, 1, 2)));;
+void verr(int eval, const char *fmt, va_list ap)
+     __attribute__ ((noreturn, format (printf, 2, 0)));
+void err(int eval, const char *fmt, ...)
+     __attribute__ ((noreturn, format (printf, 2, 3)));
+void verrx(int eval, const char *fmt, va_list ap)
+     __attribute__ ((noreturn, format (printf, 2, 0)));
+void errx(int eval, const char *fmt, ...)
+     __attribute__ ((noreturn, format (printf, 2, 3)));
+void vwarn(const char *fmt, va_list ap)
+     __attribute__ ((format (printf, 1, 0)));
+void warn(const char *fmt, ...)
+     __attribute__ ((format (printf, 1, 2)));
+void vwarnx(const char *fmt, va_list ap)
+     __attribute__ ((format (printf, 1, 0)));
+void warnx(const char *fmt, ...)
+     __attribute__ ((format (printf, 1, 2)));;
 
 #endif /* __ERR_H__ */
diff --git a/lib/roken/err.hin b/lib/roken/err.hin
index 79b8dea42..f9c8aeb3e 100644
--- a/lib/roken/err.hin
+++ b/lib/roken/err.hin
@@ -15,15 +15,24 @@ extern const char *__progname;
 #define __attribute__(x)
 #endif
 
-void warnerr(int doexit, int eval, int doerrno, const char *fmt, va_list ap) __attribute__ ((noreturn, format (printf, 4, 0)));
+void warnerr(int doexit, int eval, int doerrno, const char *fmt, va_list ap)
+     __attribute__ ((noreturn, format (printf, 4, 0)));
 
-void verr(int eval, const char *fmt, va_list ap) __attribute__ ((noreturn, format (printf, 2, 0)));
-void err(int eval, const char *fmt, ...)  __attribute__ ((noreturn, format (printf, 2, 3)));
-void verrx(int eval, const char *fmt, va_list ap) __attribute__ ((noreturn, format (printf, 2, 0)));
-void errx(int eval, const char *fmt, ...)  __attribute__ ((noreturn, format (printf, 2, 3)));
-void vwarn(const char *fmt, va_list ap) __attribute__ ((format (printf, 1, 0)));
-void warn(const char *fmt, ...)  __attribute__ ((format (printf, 1, 2)));
-void vwarnx(const char *fmt, va_list ap) __attribute__ ((format (printf, 1, 0)));
-void warnx(const char *fmt, ...)  __attribute__ ((format (printf, 1, 2)));;
+void verr(int eval, const char *fmt, va_list ap)
+     __attribute__ ((noreturn, format (printf, 2, 0)));
+void err(int eval, const char *fmt, ...)
+     __attribute__ ((noreturn, format (printf, 2, 3)));
+void verrx(int eval, const char *fmt, va_list ap)
+     __attribute__ ((noreturn, format (printf, 2, 0)));
+void errx(int eval, const char *fmt, ...)
+     __attribute__ ((noreturn, format (printf, 2, 3)));
+void vwarn(const char *fmt, va_list ap)
+     __attribute__ ((format (printf, 1, 0)));
+void warn(const char *fmt, ...)
+     __attribute__ ((format (printf, 1, 2)));
+void vwarnx(const char *fmt, va_list ap)
+     __attribute__ ((format (printf, 1, 0)));
+void warnx(const char *fmt, ...)
+     __attribute__ ((format (printf, 1, 2)));;
 
 #endif /* __ERR_H__ */