Correction of version number detection over 2 digits

Author: Songmu

testdata/vfile3

@@ -0,0 +1 @@
+version: 12.3.4

versionfile.go

@@ -15,7 +15,7 @@ import (
 )
 
 const (
-	versionRegBase = `(?i)((?:^|[^-_0-9a-zA-Z])version[^-_0-9a-zA-Z].{0,50})`
+	versionRegBase = `(?i)((?:^|[^-_0-9a-zA-Z])version[^-_0-9a-zA-Z].{0,50}?)`
 	semverRegBase  = `([0-9]+\.[0-9]+\.[0-9]+)`
 )
 

versionfile_test.go

@@ -36,15 +36,20 @@ func TestRetrieveVersionFile(t *testing.T) {
 		t.Errorf("detected: %s, expected: %s", ver.Naked(), version)
 	}
 
-	ver, err = retrieveVersionFromFile("testdata/vfile1", true)
+	ver, _ = retrieveVersionFromFile("testdata/vfile1", true)
 	if e, g := "v1.2.3", ver.Tag(); e != g {
 		t.Errorf("got: %s, expected: %s", g, e)
 	}
 
-	ver, err = retrieveVersionFromFile("testdata/vfile2", false)
+	ver, _ = retrieveVersionFromFile("testdata/vfile2", false)
 	if e, g := "1.3.5", ver.Tag(); e != g {
 		t.Errorf("got: %s, expected: %s", g, e)
 	}
+
+	ver, _ = retrieveVersionFromFile("testdata/vfile3", false)
+	if e, g := "12.3.4", ver.Tag(); e != g {
+		t.Errorf("got: %s, expected: %s", g, e)
+	}
 }
 
 func TestDetectVersionFile(t *testing.T) {