tool_helpers.c: fix comment typo (#989)

diff --git a/src/tool_helpers.c b/src/tool_helpers.c
index fef14596f52d0e9e6921381019ae15c217d9d427..14bc7668ce0e18384a01e0b2b30fc69278744e55 100644 (file)
--- a/src/tool_helpers.c
+++ b/src/tool_helpers.c
@@ -35,7 +35,7 @@
 #include "memdebug.h" /* keep this as LAST include */
 
 /*
-** Helper functions that are used from more tha one source file.
+** Helper functions that are used from more than one source file.
 */
 
 const char *param2text(int res)