indent: Do not build docs

It fails to build currently, with texinfo-dummy

|   File "/mnt/a/tmp-yoe/work/riscv64-yoe-linux-musl/indent/2.2.12-r0/recipe-sysroot-native/usr/bin/makeinfo", line 100, in <module>
|     stub_msg                                                                  | AssertionError: Don't know how to get default output file name from input file
!
| This stand-in version of makeinfo is not yet fully capable of emulating
| the real version from the GNU texinfo suite. If you see this message, file a
| bug report with details on the recipe that failed.
|                                                                               | make[2]: *** [Makefile:814: indent.html] Error 1

Signed-off-by: Khem Raj <raj.khem@gmail.com>

meta-oe/recipes-extended/indent/indent/0001-Fix-builds-with-recent-gettext.patch

@@ -9,8 +9,6 @@ Signed-off-by: Alexander Kanavin <alex.kanavin@gmail.com>
  Makefile.am | 2 +-
  1 file changed, 1 insertion(+), 1 deletion(-)
 
-diff --git a/Makefile.am b/Makefile.am
-index 548fea7..cf01c5e 100644
 --- a/Makefile.am
 +++ b/Makefile.am
 @@ -1,7 +1,7 @@
@@ -18,7 +16,17 @@ index 548fea7..cf01c5e 100644
  AUTOMAKE_OPTIONS = no-texinfo.tex
  
 -SUBDIRS = intl src doc po man
-+SUBDIRS = src doc po man
++SUBDIRS = src po man
  
  BUILT_SOURCES = 
  
+--- a/configure.ac
++++ b/configure.ac
+@@ -58,7 +58,6 @@ fi
+ AC_HEADER_DIRENT
+ 
+ AC_OUTPUT([ 
+-   intl/Makefile
+    po/Makefile.in
+    Makefile
+    src/Makefile

meta-oe/recipes-extended/indent/indent_2.2.12.bb

@@ -10,6 +10,8 @@ you want a program to format your code."
 LICENSE = "GPLv3"
 LIC_FILES_CHKSUM = "file://COPYING;md5=d32239bcb673463ab874e80d47fae504"
 
+DEPENDS = "virtual/gettext"
+
 SRC_URI = "${GNU_MIRROR}/${BPN}/${BP}.tar.gz \
            file://0001-src-indent.c-correct-the-check-for-locale.h.patch \
            file://0001-Makefile.am-remove-regression-dir.patch \
@@ -20,7 +22,7 @@ SRC_URI[sha256sum] = "e77d68c0211515459b8812118d606812e300097cfac0b4e9fb34726642
 
 inherit autotools gettext texinfo
 
-CFLAGS_class-native += " -Wno-error=unused-value"
+CFLAGS_append_class-native = " -Wno-error=unused-value"
 
 FILES_${PN}-doc += "/usr/doc/indent/indent.html"