Documentation/config.txt: make truth value of numbers more explicit

diff --git a/environment.c b/environment.c
index 9564475f429312a467a020106f7443112367d5da..c3efbb96084de04465f7eff45376cadc3ab2526b 100644 (file)
--- a/environment.c
+++ b/environment.c
@@ -21,7 +21,6 @@ int prefer_symlink_refs;
 int is_bare_repository_cfg = -1; /* unspecified */
 int log_all_ref_updates = -1; /* unspecified */
 int warn_ambiguous_refs = 1;
-int unique_abbrev_extra_length;
 int repository_format_version;
 const char *git_commit_encoding;
 const char *git_log_output_encoding;