(sc_changelog): Add another nit-picky check.

diff --git a/Makefile.maint b/Makefile.maint
index c6fbf86..8e0dd8f 100644 (file)
--- a/Makefile.maint
+++ b/Makefile.maint
@@ -66,7 +66,8 @@ syntax-check-rules = \
   sc_cast_of_x_alloc_return_value \
   sc_space_tab \
   sc_error_exit_success \
-  sc_xalloc_h_in_src
+  sc_xalloc_h_in_src \
+  sc_changelog
 
 syntax-check: $(syntax-check-rules)
 #      @grep -E '#  *include <(limits|std(def|arg|bool))\.h>'          \
@@ -125,6 +126,12 @@ sc_xalloc_h_in_src:
          fi;                                                           \
        fi
 
+# Each nonempty line must start with a year number, or a TAB.
+sc_changelog:
+       @grep '^[^12    ]' $$(find . -name ChangeLog -maxdepth 2) &&    \
+         { echo '$(ME): found unexpected prefix in a ChangeLog' 1>&2;  \
+           exit 1; } || :
+
 # Ensure that date's --help output stays in sync with the info
 # documentation for GNU strftime.  The only exception is %N,
 # which date accepts but GNU strftime does not.