depcomp spelling fix

* lib/depcomp: Fix spelling in comment.
Originally reported by Josh Soref <jsoref@gmail.com> in:
https://lists.gnu.org/r/bug-gnulib/2023-06/msg00057.html

diff --git a/lib/depcomp b/lib/depcomp
index ce5c2f7bcb390d2a48bfc1abe070c6ad77385973..ecee3e788382a3ae6e2c5c9429ea27e44eb16f98 100755 (executable)
--- a/lib/depcomp
+++ b/lib/depcomp
@@ -198,7 +198,7 @@ gcc3)
 
 gcc)
 ## Note that this doesn't just cater to obsolete pre-3.x GCC compilers.
-## but also to in-use compilers like IMB xlc/xlC and the HP C compiler.
+## but also to in-use compilers like IBM xlc/xlC and the HP C compiler.
 ## (see the conditional assignment to $gccflag above).
 ## There are various ways to get dependency output from gcc.  Here's
 ## why we pick this rather obscure method: