term-utils: add header file guards [lgtm scan]

Signed-off-by: Karel Zak <kzak@redhat.com>

diff --git a/term-utils/ttymsg.h b/term-utils/ttymsg.h
index 2cfa73027b6dcefd435cbf7a9d08e6188e1fb5a4..8424ac40f6b04f3f15db44431176bc8bdbc89c7b 100644 (file)
--- a/term-utils/ttymsg.h
+++ b/term-utils/ttymsg.h
@@ -1,2 +1,6 @@
+#ifndef UTIL_LINUX_TERM_TTYMSG_H
+#define UTIL_LINUX_TERM_TTYMSG_H
+
 char *ttymsg(struct iovec *iov, size_t iovcnt, char *line, int tmout);
 
+#endif /* UTIL_LINUX_TERM_TTYMSG_H */