install Koh 3 as koh with Koh 2 renamed koh2, and find Koh 2 for the migrate tests as koh2 first, never Koh 3 (3.2.5)

@@ -1 +1 @@1-3.2.41+3.2.5

@@ -21,9 +21,15 @@2121 	message string2222 }2323 24+// koh2_binary finds Koh 2: `koh2` since the cutover, `koh` before it, and never Koh 3.2425 fn koh2_binary() ?string {25-	path := os.find_abs_path_of_executable('koh') or { return none }26-	return path26+	for name in ['koh2', 'koh'] {27+		path := os.find_abs_path_of_executable(name) or { continue }28+		if os.execute('${os.quoted_path(path)} --version').output.starts_with('koh v2') {29+			return path30+		}31+	}32+	return none2733 }2834 2935 fn sh(dir string, command string) !string {

@@ -1340,8 +1340,15 @@13401340 13411341 // --- migration -------------------------------------------------------------13421342 1343+// koh2_binary finds Koh 2: `koh2` since the cutover, `koh` before it, and never Koh 3.13431344 fn koh2_binary() string {1344-	return os.find_abs_path_of_executable('koh') or { '' }1345+	for name in ['koh2', 'koh'] {1346+		path := os.find_abs_path_of_executable(name) or { continue }1347+		if os.execute('${os.quoted_path(path)} --version').output.starts_with('koh v2') {1348+			return path1349+		}1350+	}1351+	return ''13451352 }13461353 13471354 // run_koh2 runs the Koh 2 binary in a fixture; its own output is not under

@@ -1,6 +1,6 @@11 Module {22 	name: 'koh3'3-	version: '3.2.4'3+	version: '3.2.5'44 	description: 'One SQLite file per repo, one line of history.'55 	license: 'MIT'66 }