Fix Android native Git child exit handling so committed levels validate and Git calls avoid SIGSEGV status 139

app/src/main/java/solutions/tretter/githugandroid/GitRuntime.kt

@@ -196,7 +196,7 @@ class GitRepositoryRuntime private constructor(
             addAll(GitSandboxEngine.commandReferenceLines())
             add("Native Git runtime:")
             add("  binary path: nativeLibraryDir/libgit.so")
-            add("  invocation: init_git(argv), then cmd_main(argc, argv)")
+            add("  invocation: githug_git_main(argc, argv)")
             add("  selected ABI: ${Build.SUPPORTED_ABIS.firstOrNull() ?: "unknown"}")
             add("  helper commands: ls/dir, pwd, cat, sh <script>, ./<script>, touch, mkdir/md, cd.., rm/del, echo")
             add("  visual editors: vi, vim, nano, emacs, ed, ex, edit, notepad")