Remove format: .number from Linux string interpolations

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: RISCfuture

Sources/SwiftCIFP/Parser/CIFPError.swift

@@ -223,7 +223,7 @@ public enum CIFPError: Error, LocalizedError, Sendable {
             bundle: .module
           )
         #else
-          return "Failed to parse \(field) “\(value)” at line \(line, format: .number)."
+          return “Failed to parse \(field) “\(value)” at line \(line).”
         #endif
       case .fileNotFound(let url):
         #if canImport(Darwin)
@@ -248,7 +248,7 @@ public enum CIFPError: Error, LocalizedError, Sendable {
             bundle: .module
           )
         #else
-          return "Line \(line, format: .number) has \(actual, format: .number) characters but \(expected, format: .number) are required."
+          return "Line \(line) has \(actual) characters but \(expected) are required."
         #endif
       case let .unknownSectionCode(code, line):
         #if canImport(Darwin)
@@ -257,7 +257,7 @@ public enum CIFPError: Error, LocalizedError, Sendable {
             bundle: .module
           )
         #else
-          return "Unknown section code “\(code)” at line \(line, format: .number)."
+          return “Unknown section code “\(code)” at line \(line).”
         #endif
       case let .unknownRecordType(type, line):
         #if canImport(Darwin)
@@ -266,7 +266,7 @@ public enum CIFPError: Error, LocalizedError, Sendable {
             bundle: .module
           )
         #else
-          return "Unknown record type “\(String(type))” at line \(line, format: .number)."
+          return “Unknown record type “\(String(type))” at line \(line).”
         #endif
       case let .missingRequiredField(field, recordType, line):
         #if canImport(Darwin)
@@ -276,7 +276,7 @@ public enum CIFPError: Error, LocalizedError, Sendable {
             bundle: .module
           )
         #else
-          return "Field “\(field)” is required for \(recordType) at line \(line, format: .number)."
+          return “Field “\(field)” is required for \(recordType) at line \(line).”
         #endif
       case let .unknownSubsectionCode(section, subsection, line):
         #if canImport(Darwin)
@@ -286,7 +286,7 @@ public enum CIFPError: Error, LocalizedError, Sendable {
             bundle: .module
           )
         #else
-          return "Unknown subsection “\(String(subsection))” in section “\(section)” at line \(line, format: .number)."
+          return “Unknown subsection “\(String(subsection))” in section “\(section)” at line \(line).”
         #endif
       case let .aggregationError(recordType, identifier, reason):
         let reasonString: String =