maint: avoid file-scope names of the form _[a-z]*

The C standard says this isn't portable, if you include
standard include files.
* build-aux/gen-single-binary.sh:
* src/coreutils-arch.c (single_binary_main_arch)
(single_binary_main_uname):
* src/coreutils-dir.c (single_binary_main_ls)
(_single_binary_main_dir):
* src/coreutils-vdir.c (single_binary_main_ls)
(_single_binary_main_vdir):
* src/coreutils.c (SINGLE_BINARY_PROGRAM):
Remove leading _ from single_binary prefix.
* src/numfmt.c (round_style): Rename from _round.  All uses changed.
(inval_style): Rename from _invalid.  All uses changed.

1 files changed, 4 insertions, 4 deletions

diff --git a/src/coreutils-arch.c b/src/coreutils-arch.c
index f55bef9d9..66e49909d 100644
--- a/src/coreutils-arch.c
+++ b/src/coreutils-arch.c
@@ -22,12 +22,12 @@
 #include "uname.h"
 /* Ensure that the main for uname is declared even if the tool is not being
    built in this single-binary. */
-int _single_binary_main_uname (int argc, char **argv);
-int _single_binary_main_arch (int argc, char **argv);
+int single_binary_main_uname (int argc, char **argv);
+int single_binary_main_arch (int argc, char **argv);
 
 int
-_single_binary_main_arch (int argc, char **argv)
+single_binary_main_arch (int argc, char **argv)
 {
   uname_mode = UNAME_ARCH;
-  return _single_binary_main_uname (argc, argv);
+  return single_binary_main_uname (argc, argv);
 }