diff-format.txt: Combined diff format documentation supplement

diff --git a/exec_cmd.c b/exec_cmd.c
index c1539d12ce9e350811b5b110206f5577a151e8ef..5d6a1247b4a1955dffae2b52da064a6eb489d83b 100644 (file)
--- a/exec_cmd.c
+++ b/exec_cmd.c
@@ -1,10 +1,11 @@
 #include "cache.h"
 #include "exec_cmd.h"
+#include "quote.h"
 #define MAX_ARGS       32
 
 extern char **environ;
 static const char *builtin_exec_path = GIT_EXEC_PATH;
-static const char *current_exec_path = NULL;
+static const char *current_exec_path;
 
 void git_set_exec_path(const char *exec_path)
 {
@@ -96,9 +97,13 @@ int execv_git_cmd(const char **argv)
                tmp = argv[0];
                argv[0] = git_command;
 
+               trace_argv_printf(argv, -1, "trace: exec:");
+
                /* execve() can only ever return if it fails */
                execve(git_command, (char **)argv, environ);
 
+               trace_printf("trace: exec failed: %s\n", strerror(errno));
+
                argv[0] = tmp;
        }
        return -1;