Followup for "Win32: move main macro to a function" for const correctness.

This handles const warnings that break the build raised by http-fetch and
remote-curl main functions that have different const arguments.

Signed-off-by: Pat Thoyts <patthoyts@users.sourceforge.net>

Author: patthoyts

compat/mingw.h

@@ -374,7 +374,7 @@ extern CRITICAL_SECTION pinfo_cs;
 void mingw_startup();
 #define main(c,v) dummy_decl_mingw_main(); \
 static int mingw_main(c,v); \
-int main(int argc, char **argv) \
+int main(c,v) \
 { \
 	mingw_startup(); \
 	return mingw_main(__argc, __argv); \

http-fetch.c

@@ -6,11 +6,12 @@
 static const char http_fetch_usage[] = "git http-fetch "
 "[-c] [-t] [-a] [-v] [--recover] [-w ref] [--stdin] commit-id url";
 
-int main(int argc, const char **argv)
+int main(int argc, char **av)
 {
 	struct walker *walker;
 	int commits_on_stdin = 0;
 	int commits;
+	const char **argv = (const char **)av;
 	const char **write_ref = NULL;
 	char **commit_id;
 	char *url = NULL;

remote-curl.c

@@ -905,9 +905,10 @@ static void parse_push(struct strbuf *buf)
 	free(specs);
 }
 
-int main(int argc, const char **argv)
+int main(int argc, char **av)
 {
 	struct strbuf buf = STRBUF_INIT;
+	const char **argv = (const char **)av;
 	int nongit;
 
 	git_extract_argv0_path(argv[0]);