Typo

Author: apolukhin

doc/stacktrace.qbk

@@ -379,7 +379,7 @@ In practice, it is not:
   ([@https://github.com/userver-framework/userver/blob/4246909c99506d3ab34bd130a5154b4acc8e87de/core/src/engine/task/exception_hacks.cpp#L241-L244 sample implementation]
   in the 🐙 userver framework), or by using a very modern runtime
   (glibc-2.35+ with [@https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71744#c32 modern]
-  libgvc or [@https://reviews.llvm.org/D130668 modern] LLVM's libunwind.
+  libgcc or [@https://reviews.llvm.org/D130668 modern] LLVM's libunwind.
 * `-fomit-frame-pointer` like flags add additional complexity to the stack
   walking implementation, which may also negatively affect the signal safety.