Update src/profile.c

Co-authored-by: Max Horn <[email protected]>

src/profile.c

@@ -83,7 +83,7 @@
 **     we provide -P (profiling) and -c (code coverage) options to the GAP
 **     executable so the user can start before code loading starts
 **
-**  3) Operating at just a line basis can sometimes be too course. However,
+**  3) Operating at just a line basis can sometimes be too coarse. However,
 **     without some serious additional overheads, I can't see how to provide this
 **     functionality in output (basically we would have to store
 **     line and character positions for the start and end of every expression).