[PATCH] perf: use GIT_PERF_REPEAT_COUNT=3 by default even without config file

["René Scharfe" <l.s.r@web.de>]

9ba95ed23c (perf/run: update get_var_from_env_or_config() for
subsections) stopped setting a default value for GIT_PERF_REPEAT_COUNT
if no perf config file is present, because get_var_from_env_or_config
returns early in that case.

Fix it by setting the default value after calling this function.  Its
fifth parameter is not used for any other variable, so remove the
associated code.

Signed-off-by: Rene Scharfe <l.s.r@web.de>
---
 t/perf/run | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/t/perf/run b/t/perf/run
index 1a100d6134..213da5d6b9 100755
--- a/t/perf/run
+++ b/t/perf/run
@@ -106,29 +106,27 @@ get_var_from_env_or_config () {
 	conf_sec="$2"
 	conf_var="$3"
 	conf_opts="$4" # optional
-	# $5 can be set to a default value
 
 	# Do nothing if the env variable is already set
 	eval "test -z \"\${$env_var+x}\"" || return
 
 	test -z "$GIT_PERF_CONFIG_FILE" && return
 
 	# Check if the variable is in the config file
 	if test -n "$GIT_PERF_SUBSECTION"
 	then
 		var="$conf_sec.$GIT_PERF_SUBSECTION.$conf_var"
 		conf_value=$(git config $conf_opts -f "$GIT_PERF_CONFIG_FILE" "$var") &&
 		eval "$env_var=\"$conf_value\"" && return
 	fi
 	var="$conf_sec.$conf_var"
 	conf_value=$(git config $conf_opts -f "$GIT_PERF_CONFIG_FILE" "$var") &&
-	eval "$env_var=\"$conf_value\"" && return
-
-	test -n "${5+x}" && eval "$env_var=\"$5\""
+	eval "$env_var=\"$conf_value\""
 }
 
 run_subsection () {
-	get_var_from_env_or_config "GIT_PERF_REPEAT_COUNT" "perf" "repeatCount" "--int" 3
+	get_var_from_env_or_config "GIT_PERF_REPEAT_COUNT" "perf" "repeatCount" "--int"
+	: ${GIT_PERF_REPEAT_COUNT:=3}
 	export GIT_PERF_REPEAT_COUNT
 
 	get_var_from_env_or_config "GIT_PERF_DIRS_OR_REVS" "perf" "dirsOrRevs"
-- 
2.16.2