Fix wording in docu

Author: olpaw

docs/reference-manual/native-image/DebugInfo.md

@@ -997,7 +997,7 @@ Normally when perf does stack frame recording (i.e. when `--call-graph` is used)
 This assumes that the executable that gets profiled actually preserves frame pointers whenever a function gets called.
 For native images, this can be achieved by using `-H:+PreserveFramePointer` as an image build argument.
 
-An alternative solution is to make perf use dwarf debug info (specifically debug_frame data) to help unwinding stack frames.
+An alternative solution is to make perf use dwarf debug info (specifically debug_frame data) to help unwind stack frames.
 To make this work, the image needs to be built with `-g` (to generate debuginfo), and `perf record` needs to use the argument `--call-graph dwarf` to make sure dwarf debug info (instead of frame pointers) is used for stack unwinding.
 
 ## Related Documentation